Gawk usage: Difference between revisions
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(Created page with "Awk is a versatile glue language, and it can be used in a few ways. = Stdin = <blockquote> <syntaxhighlight lang="bash"> echo 'aa bb cc' | awk '{print $2}' # bb </syntaxhigh...") |
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<blockquote> | <blockquote> | ||
run an awk file from interpreter | |||
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
awk -f file.awk [arg..] # run awk script | |||
</syntaxhighlight> | |||
Or use a shebang to indicate script runs in awk | |||
<syntaxhighlight lang="bash"> | |||
#!/usr/bin/env awk -f | |||
# foo.awk | |||
</syntaxhighlight> | |||
and run it directly | |||
<syntaxhighlight lang="bash"> | |||
./foo.awk | |||
</syntaxhighlight> | </syntaxhighlight> | ||
</blockquote><!-- Scripting --> | </blockquote><!-- Scripting --> | ||
Revision as of 01:02, 19 July 2021
Awk is a versatile glue language, and it can be used in a few ways.
Stdin
echo 'aa bb cc' | awk '{print $2}' # bb
Commands
awk 'BEIGN {print 1.5 / 2}' # 0.75
Scripting
run an awk file from interpreter
awk -f file.awk [arg..] # run awk scriptOr use a shebang to indicate script runs in awk
#!/usr/bin/env awk -f # foo.awkand run it directly
./foo.awk
