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Full Discussion: AWK commands, in different OS
Top Forums Shell Programming and Scripting AWK commands, in different OS Post 303016048 by jim mcnamara on Wednesday 18th of April 2018 09:55:44 PM
Old 04-18-2018
Step 1: verify that the $awkcmd variable has the right data in it. i.e.,
Code:
echo "$awkcmd"

should show nawk.

Then verify that nawk is in the PATH variable of the process running the code:
Code:
echo " I am running nawk which is `which nawk`"

Do that before playing with the awk code itself.

The awk code is clunky but looks, eh.., reasonable maybe, for nawk. If you get no output then you must rule out or find an error message about nawk not found, or if $awkcmd is not assigned you will get a shell error because the shell will try to run the awk code which is gibberish to the shell.

You need to start looking from the very first line, IMO. Keep ruling out problems as you go forward. Do not simply jump ahead 30 lines.
Last edited by jim mcnamara; 04-19-2018 at 08:30 AM..
 

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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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