bash Bad Substitution

0 votes

#!/bin/bash

jobname="job_201312161447_0003"
jobname_pre=${jobname:0:16}
jobname_post=${jobname:17}

This bash script gives me Bad substitution error on ubuntu. Any help will be highly appreciated.

Jun 20 in Linux Administration by Korak
• 5,820 points
16 views

1 answer to this question.

0 votes

The default shell (/bin/sh) under Ubuntu focuses to run, not slam.

me@pc:~$ readlink - f $(which sh)
/canister/run

So in the event that you

 chmod +x your_script_file.sh and, run it with ./your_script_file.sh

or on the other hand assuming you run it with slam your_script_file.sh, it ought to turn out great.

Running it with sh your_script_file.sh won't work on the grounds that the hashbang line will be disregarded and the content will be deciphered by run, which doesn't uphold that string substitution syntax.

answered Jun 20 by Rahul
• 3,380 points

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