mjhjmtu

I have a script that contains a clearCnt function that works correctly on my Linux system with bash version GNU bash, version 4.3.48, but doesn't works correctly on the Linux target system. The bash ( version: GNU bash, version 4.1.2(1) ) on the target system doesn't accept the command local -n.

The following code is an extract of the script that shall use the function clearCnt more times during the "main" script flow and shall use also a lot of arrays different from hh.

#!/bin/bash

# clearCnt(src,dst) 
clearCnt()

local i=0
local -n src=$1
local -n dst=$2

while test $src[$i] != 'xxx'; do

 let dst[$i]=0
 echo $src[$i] $dst[$i]

 let i=i+1
done

return


hdc=0
hh=
GT5849503583053053
ST5849503583053063
MT6849503583053053
KT5849503583053053
xxx

clearCnt hh hdc
exit

How am I allowed to solve this issue?

local -n would define a name reference variable.

Update the bash on the target system to bash-4.3 or newer (this is the release of the shell that introduced name references), or install that version of the shell elsewhere on the system and make your scripts use that instead of /bin/bash.

Note also that every single variable expansion in that code must be double quoted. For example,

while test $src[$i] != 'xxx'; do

should be written

while test "$src[$i]" != 'xxx'; do

or as

while [ "$src[$1]" != 'xxx' ]; do