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Top Forums UNIX for Dummies Questions & Answers How to use shell commands within awk? Post 302961435 by rishi90 on Sunday 29th of November 2015 08:22:29 AM
Old 11-29-2015
How to use shell commands within awk?

Hey guys i want to use shell commands like ls, find, cd and more with in awk statements with inputs from the awk variables.
Like in the below code how can i change the directory using the value of path. Please suggest

Code:
awk '{ while (i<NR) 
	{
	 i++;
	 percentage[i] = $5;
	 path[i] = $6;
	 split(percentage[i],array,"%");
	 percentage[i]=array[1];

	 if(percentage[i] > 40 && percentage[i]!="Use")
	 {		
		print "Greater than 40",percentage[i],path[i];
		system("cd" path[i]);
		system("ls -l");
		
	 }
	}
     }' formated.txt

 

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SHTOOL-PATH.TMP(1)					      GNU Portable Shell Tool						SHTOOL-PATH.TMP(1)

NAME
shtool-path - GNU shtool command dealing with shell path variables SYNOPSIS
shtool path [-s|--suppress] [-r|--reverse] [-d|--dirname] [-b|--basename] [-m|--magic] [-p|--path path] str [str ...] DESCRIPTION
This command deals with shell $PATH variables. It can find a program through one or more filenames given by one or more str arguments. It prints the absolute filesystem path to the program displayed on "stdout" plus an exit code of 0 if it was really found. OPTIONS
The following command line options are available. -s, --suppress Supress output. Useful to only test whether a program exists with the help of the return code. -r, --reverse Transform a forward path to a subdirectory into a reverse path. -d, --dirname Output the directory name of str. -b, --basename Output the base name of str. -m, --magic Enable advanced magic search for ""perl"" and ""cpp"". -p, --path path Search in path. Default is to search in $PATH. EXAMPLE
# shell script awk=`shtool path -p "${PATH}:." gawk nawk awk` perl=`shtool path -m perl` cpp=`shtool path -m cpp` revpath=`shtool path -r path/to/subdir` HISTORY
The GNU shtool path command was originally written by Ralf S. Engelschall <rse@engelschall.com> in 1998 for Apache. It was later taken over into GNU shtool. SEE ALSO
shtool(1), which(1). 18-Jul-2008 shtool 2.0.8 SHTOOL-PATH.TMP(1)
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