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Operating Systems Linux Gentoo cpu%/mem% usage, scripting, dzen2: howto learn bash the hard way Post 302221461 by era on Monday 4th of August 2008 01:19:20 PM
Old 08-04-2008
Quote:
Originally Posted by broli
so, if i read your post correctly, with awk i can simulate sime functions of tail or head...
what about sort?
Modern versions of awk have a sort command. I'm not sure if it was included even in the original awk.

Quote:
well. i see now, that perl is a best solution than bash. after all perl was made to process text right? :P
and perl has always been in my todo-list
the problem there would be to pipe the info to dzen
because the way dzen works, i need an never ending loop, so dzen dosnt die
is posible to do that piping from a perl script?
Certainly, but I'm not really suggesting you move to Perl just for this. There are really two schools of thought on this; skip awk, and only learn Perl; or move to Perl if you run into situations which awk cannot handle comfortably. If you need to process binary data or very large data sets, Perl was designed to overcome the limitations awk have in those areas.

But the requirements you have shown so far should be easy to handle in awk; it's just not clear from reading the code in which direction you want the script to grow, and/or I was too lazy to rewrite it all.
 

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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). Free Software Foundation Nov 3 1999 IGAWK(1)
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