Interactive help: Difference between revisions

(Added Perl example)
Line 6:
<br><br>
 
=={{header|AWK}}==
<lang AWK>
# syntax: GAWK --help
</lang>
{{out}}
<pre>
Usage: gawk [POSIX or GNU style options] -f progfile [--] file ...
Usage: gawk [POSIX or GNU style options] [--] 'program' file ...
POSIX options: GNU long options: (standard)
-f progfile --file=progfile
-F fs --field-separator=fs
-v var=val --assign=var=val
Short options: GNU long options: (extensions)
-b --characters-as-bytes
-c --traditional
-C --copyright
-d[file] --dump-variables[=file]
-D[file] --debug[=file]
-e 'program-text' --source='program-text'
-E file --exec=file
-g --gen-pot
-h --help
-i includefile --include=includefile
-l library --load=library
-L [fatal] --lint[=fatal]
-n --non-decimal-data
-M --bignum
-N --use-lc-numeric
-o[file] --pretty-print[=file]
-O --optimize
-p[file] --profile[=file]
-P --posix
-r --re-interval
-S --sandbox
-t --lint-old
-V --version
 
To report bugs, see node `Bugs' in `gawk.info', which is
section `Reporting Problems and Bugs' in the printed version.
 
gawk is a pattern scanning and processing language.
By default it reads standard input and writes standard output.
 
Examples:
gawk '{ sum += $1 }; END { print sum }' file
gawk -F: '{ print $1 }' /etc/passwd
</pre>
=={{header|Go}}==
The 'go doc' command line tool shows documentation for either a package or a symbol within a package.
477

edits