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git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@445 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
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@ -12,11 +12,11 @@ The Bison package contains the bison program.
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<para>
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<para>
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Bison is a parser generator, a replacement for YACC. YACC stands for Yet
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Bison is a parser generator, a replacement for YACC. YACC stands for Yet
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Another Compiler Compiler. What is Bison then? It is a program that
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Another Compiler Compiler. What is Bison then? It is a program that
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generates a program that analyses the structure of a textfile. Instead
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generates a program that analyzes the structure of a text file. Instead
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of
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of
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writing the actual program a user specifies how things should be connected
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writing the actual program a user specifies how things should be connected
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and with
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and with
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those rules a program is constructed that analyses the textfile.
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those rules a program is constructed that analyzes the text file.
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</para>
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</para>
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<para>
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<para>
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@ -36,7 +36,7 @@ Given the string :
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<para>
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<para>
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A human can easily come to the result 7. Why? Because of the structure.
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A human can easily come to the result 7. Why? Because of the structure.
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Our brain knows
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Our brain knows
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how to interpretet the string. The computer doesn't know that and Bison
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how to interpret the string. The computer doesn't know that and Bison
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is a
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is a
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tool to help it understand by presenting the string in the following way
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tool to help it understand by presenting the string in the following way
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to the compiler:
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to the compiler:
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@ -21,7 +21,7 @@ programs have extra options which compare files in different situations.
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<sect3><title>diff3</title>
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<sect3><title>diff3</title>
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<para>
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<para>
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The difference between diff and diff3 is that diff comprares 2 files,
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The difference between diff and diff3 is that diff compares 2 files,
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diff3 compares 3 files.
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diff3 compares 3 files.
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</para>
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</para>
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@ -10,7 +10,7 @@ The Flex package contains the flex program
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<sect2><title>Description</title>
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<sect2><title>Description</title>
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<para>
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<para>
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Flex is a tool for generating programs which regognize patterns in text.
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Flex is a tool for generating programs which recognizes patterns in text.
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Pattern recognition is very useful in many applications. A user sets up rules
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Pattern recognition is very useful in many applications. A user sets up rules
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what to look for and flex will make a program that looks for those
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what to look for and flex will make a program that looks for those
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patterns. The reason people use flex is that it is much easier to set up
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patterns. The reason people use flex is that it is much easier to set up
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@ -24,7 +24,7 @@ of these compiler generated object files.
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<sect3><title>Preprocessor</title>
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<sect3><title>Preprocessor</title>
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<para>
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<para>
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A preprocessor preprocesses a source file, such as including
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A preprocessor pre-processes a source file, such as including
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the contents of header files into the source file. It's a good idea to
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the contents of header files into the source file. It's a good idea to
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not
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not
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do this manually to save a lot of time. Someone just inserts a line
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do this manually to save a lot of time. Someone just inserts a line
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@ -17,7 +17,7 @@ are already present and at the disposal of the programmer.
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</para>
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</para>
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<para>
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<para>
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The C library (actually almost every library) come in two flavours:
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The C library (actually almost every library) come in two flavors:
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dynamic ones and static ones. In short when a program uses a static C
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dynamic ones and static ones. In short when a program uses a static C
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library, the code from the C library will be copied into the executable
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library, the code from the C library will be copied into the executable
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file. When a program uses a dynamic library, that executable will not
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file. When a program uses a dynamic library, that executable will not
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@ -50,7 +50,7 @@ grodvi is a driver for groff that produces TeX dvi format.
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<para>
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<para>
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groff is a front-end to the groff document formatting system. Normally it
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groff is a front-end to the groff document formatting system. Normally it
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runs the troff program and a postprocessor appropriate for the selected
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runs the troff program and a post-processor appropriate for the selected
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device.
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device.
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</para>
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</para>
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@ -86,7 +86,7 @@ for an HP Laserjet 4 printer.
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<sect3><title>grops</title>
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<sect3><title>grops</title>
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<para>
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<para>
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grops translates the output of GNU troff to PostScript.
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grops translates the output of GNU troff to Postscript.
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</para>
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</para>
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</sect3>
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</sect3>
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@ -158,7 +158,7 @@ The nroff script emulates the nroff command using groff.
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<sect3><title>pfbtops</title>
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<sect3><title>pfbtops</title>
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<para>
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<para>
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pfbtops translates a PostScript font in .pfb format to ASCII.
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pfbtops translates a Postscript font in .pfb format to ASCII.
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</para>
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</para>
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</sect3>
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</sect3>
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@ -175,7 +175,7 @@ files into commands that are understood by TeX or troff.
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<sect3><title>psbb</title>
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<sect3><title>psbb</title>
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<para>
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<para>
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psbb reads a file which should be a PostScript document conforming to the
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psbb reads a file which should be a Postscript document conforming to the
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Document Structuring conventions and looks for a %%BoundingBox comment.
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Document Structuring conventions and looks for a %%BoundingBox comment.
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</para>
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</para>
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@ -225,7 +225,7 @@ tfmtodit creates a font file for use with <userinput>groff
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<para>
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<para>
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troff is highly compatible with Unix troff. Usually it should be invoked
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troff is highly compatible with Unix troff. Usually it should be invoked
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using the groff command, which will also run preprocessors and
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using the groff command, which will also run preprocessors and
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postprocessors in the appropriate order and with the appropriate options.
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post-processors in the appropriate order and with the appropriate options.
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</para>
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</para>
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</sect3>
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</sect3>
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@ -83,7 +83,7 @@ zgrep invokes the grep program on compressed files.
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<para>
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<para>
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Zmore is a filter which allows examination of compressed or plain text
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Zmore is a filter which allows examination of compressed or plain text
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files one screenful at a time on a soft-copy terminal (similar to the
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files one screen at a time on a soft-copy terminal (similar to the
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more program).
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more program).
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</para>
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</para>
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@ -92,7 +92,7 @@ more program).
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<sect3><title>znew</title>
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<sect3><title>znew</title>
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<para>
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<para>
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Znew recompresses files from .Z (compress) format to .gz (gzip) format.
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Znew re-compresses files from .Z (compress) format to .gz (gzip) format.
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</para>
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</para>
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</sect3>
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</sect3>
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@ -160,7 +160,7 @@ setkeycodes loads kernel scancode-to-keycode mapping table entries.
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<title>setleds</title>
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<title>setleds</title>
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<para>
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<para>
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setleds sets the keyboard leds. Many people find it useful to have numlock
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setleds sets the keyboard LEDs. Many people find it useful to have numlock
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enabled by default, and it is by using this program that you can achieve this.
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enabled by default, and it is by using this program that you can achieve this.
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</para>
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</para>
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@ -12,8 +12,8 @@ The M4 package contains the M4 processor
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<para>
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<para>
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M4 is a macro processor. It copies input to output expanding macros as it
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M4 is a macro processor. It copies input to output expanding macros as it
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goes. Macros are either builtin or user-defined and can take any number
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goes. Macros are either built-in or user-defined and can take any number
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of arguments. Besides just doing macro expansion m4 has builtin functions
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of arguments. Besides just doing macro expansion m4 has built-in functions
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for including named files, running UNIX commands, doing integer arithmetic,
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for including named files, running UNIX commands, doing integer arithmetic,
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manipulating text in various ways, recursion, etc. M4 can be used either
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manipulating text in various ways, recursion, etc. M4 can be used either
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as a front-end to a compiler or as a macro processor in its own right.
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as a front-end to a compiler or as a macro processor in its own right.
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@ -41,7 +41,7 @@ output. Only complete word matches are displayed.
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<para>
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<para>
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makewhatis reads all the manual pages contained in given sections of
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makewhatis reads all the manual pages contained in given sections of
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manpath or the preformatted pages contained in the given sections of
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manpath or the pre-formatted pages contained in the given sections of
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catpath. For each page, it writes a line in the whatis database; each
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catpath. For each page, it writes a line in the whatis database; each
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line consists of the name of the page and a short description,
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line consists of the name of the page and a short description,
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separated by a dash. The description is extracted using the content of
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separated by a dash. The description is extracted using the content of
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@ -84,7 +84,7 @@ route is the general utility which is used to manipulate the IP routing table.
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<title>slattach</title>
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<title>slattach</title>
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<para>
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<para>
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slattach attaches a network interface to a serial line, ie. puts a normal
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slattach attaches a network interface to a serial line, i.e.. puts a normal
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terminal line into one of several "network" modes.
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terminal line into one of several "network" modes.
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</para>
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</para>
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@ -126,7 +126,7 @@ input and uses this information to update a group of existing users.
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<sect3><title>dpasswd</title>
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<sect3><title>dpasswd</title>
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<para>
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<para>
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dpasswd adds, deletes, and updates dialup passwords for user login shells.
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dpasswd adds, deletes, and updates dial-up passwords for user login shells.
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</para>
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</para>
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</sect3>
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</sect3>
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@ -142,7 +142,7 @@ notified that the system is going down, and login is blocked.
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<para>
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<para>
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sulogin is invoked by init when the system goes into single user mode
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sulogin is invoked by init when the system goes into single user mode
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(this is done through an entry in /etc/inittab). Init also tries to
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(this is done through an entry in /etc/inittab). Init also tries to
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execute sulogin when it is passed the -b flag from the bootmonitor (eg, LILO).
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execute sulogin when it is passed the -b flag from the boot loader (eg, LILO).
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</para>
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</para>
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</sect3>
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</sect3>
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@ -49,7 +49,7 @@ kill sends a specified signal to the specified process.
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<title>more</title>
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<title>more</title>
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<para>
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<para>
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more is a filter for paging through text one screenful at a time.
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more is a filter for paging through text one screen full at a time.
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</para>
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</para>
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</sect3>
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</sect3>
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@ -345,7 +345,7 @@ ipcrm removes a specified resource.
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<title>ipcs</title>
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<title>ipcs</title>
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<para>
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<para>
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ipcs provides information on ipc facilities.
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ipcs provides information on IPC facilities.
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</para>
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</para>
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</sect3>
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@ -453,7 +453,7 @@ setterm sets terminal attributes.
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<title>ul</title>
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<title>ul</title>
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<para>
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<para>
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ul reads a file and translates occurences of underscores to the sequence
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ul reads a file and translates occurrences of underscores to the sequence
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which indicates underlining for the terminal in use.
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which indicates underlining for the terminal in use.
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</para>
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</para>
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@ -527,7 +527,7 @@ swapdev queries and sets swap device.
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<title>tunelp</title>
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<title>tunelp</title>
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<para>
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<para>
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tunelp sets various parameters for the lp device.
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tunelp sets various parameters for the LP device.
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</para>
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</para>
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</sect3>
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</sect3>
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<para>
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<para>
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etags does the same as ctags but it can generate cross reference files
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etags does the same as ctags but it can generate cross reference files
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which list information about the various source objects found in a set
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which list information about the various source objects found in a set
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of lanugage files.
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of language files.
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</para>
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</para>
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</sect3>
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</sect3>
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