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Full Discussion: Is it possible to pass variable from awk to shell back
Top Forums Shell Programming and Scripting Is it possible to pass variable from awk to shell back Post 302144887 by aigles on Sunday 11th of November 2007 01:08:14 PM
Old 11-11-2007
Another way than may be useful for setting multiple variables:
Code:
$ CurrentLine="The_Datas:Rest_of_line"
$ eval $(echo $CurrentLine | awk -F'[ :]' '{ print "DataLine=\"" $1 "\"\nRestLine=\"" $2 "\""}')
$ echo "<$DataLine> <$RestLine>"
<The_Datas> <Rest_of_line>
$

The eval command with debug trace :
Code:
$ set -x
$ eval $(echo $CurrentLine | awk -F'[ :]' '{ print "DataLine=\"" $1 "\"\nRestLine=\"" $2 "\""}')
++ echo The_Datas:Rest_of_line
++ awk '-F[ :]' '{ print "DataLine=\"" $1 "\"\nRestLine=\"" $2 "\""}'
+ eval 'DataLine="The_Datas"' 'RestLine="Rest_of_line"'
++ DataLine=The_Datas
++ RestLine=Rest_of_line
$


Jean-Pierre.
 

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LEARN ABOUT LINUX

shtool-path

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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