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Full Discussion: Selection from array
Top Forums Shell Programming and Scripting Selection from array Post 303024319 by RudiC on Saturday 6th of October 2018 04:14:10 AM
Old 10-06-2018
Could you confirm your belief that "it does look like something that could solve this", e.g. by trial and error? That were a possible (if not the usual) approach when encountering something new.


Howsoever, here's a small example how you could proceed. Unfortunately, I had to go through a TMP file, as piping the sed result directly into readarray failed, although its man page says: "Read lines from the standard input into the indexed array variable array"
Try and comment back

Code:
awless . . . | sed -r 's/( *)\| */\1/g; s/  / /g; s/[^ ]* *$//; > TMP
<TMP readarray -ts2 TARR
select OPT in "${TARR[@]}"
  do    echo "$REPLY: $REPLY, variable: $OPT, reduced var: ${OPT% * *}"
  done
1) rtb-0b5c74xxxxxxx network-public 
2) rtb-0d18xxxxxxxxx network-private 
3) rtb-0e47xxxxxxxxx 
#? 1
1: 1, variable: rtb-0b5c74xxxxxxx network-public , reduced var: rtb-0b5c74xxxxxxx
#? 2
2: 2, variable: rtb-0d18xxxxxxxxx network-private , reduced var: rtb-0d18xxxxxxxxx
#? 3
3: 3, variable: rtb-0e47xxxxxxxxx , reduced var: rtb-0e47xxxxxxxxx 
#?

 

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LEARN ABOUT LINUX

shtool-mkln

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

NAME

       shtool-mkln - GNU shtool enhanced ln(1) replacement

SYNOPSIS

       shtool mkln [-t|--trace] [-f|--force] [-s|--symbolic] src-path [src-path ...]  dst-path

DESCRIPTION

       This is a ln(1) style command. It is enhanced to provide automatic calculation and usage of relative links with the shortest possible path,
       if possible. Usually if src-path and dst-path are not absolute paths or at least they share a common prefix except the root directory
       (``"/"''). When more than one src-path is specified, all of them are linked into dst-path.

OPTIONS

       The following command line options are available.

       -t, --trace
	   Enable the output of the essential shell commands which are executed.

       -f, --force
	   Force the creation of the link even if it exists. Default is to fail with error.

       -s, --symbolic
	   Create a symbolic link instead of a hard-link.

EXAMPLE

	#   shell script
	shtool mkln -s foo/bar baz/quux

HISTORY

       The GNU shtool fixperm command was originally written by Ralf S.  Engelschall <rse@engelschall.com> in 1998 for ePerl.

SEE ALSO

       shtool(1), ln(1).

18-Jul-2008							   shtool 2.0.8 						SHTOOL-MKLN.TMP(1)
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