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, 2022 in Linux Administration by Korak
• 5,820 points
1,510 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, 2022 by Rahul
• 3,380 points

Related Questions In Linux Administration

+1 vote
3 answers
0 votes
1 answer

How to take input from user in bash script?

You can use if-else branch to check ...READ MORE

answered Jan 31, 2019 in Linux Administration by Omkar
• 69,210 points
835 views
0 votes
1 answer

setting a variable output from a bash command

You can use $(command), which in my ...READ MORE

answered Feb 15, 2019 in Linux Administration by DareDev
• 6,890 points
2,164 views
0 votes
2 answers

how to loop through the content of a file using bash

#!/bin/bash for i in  `cat peptides.txt` do echo $i done READ MORE

answered Sep 5, 2020 in Linux Administration by Prakash K. Aithal
2,487 views
0 votes
1 answer

redirecting stdout and stderr to file using bash

cmd >>file.txt 2>&1 Bash always executes and redirects ...READ MORE

answered Mar 19, 2019 in Linux Administration by ajs3033
• 7,300 points
20,588 views
0 votes
1 answer

Comparing two string variables in an 'if' statement in Bash

1. For string comparison, use: if [ "$s1" ...READ MORE

answered May 15, 2019 in Linux Administration by Shubham
• 13,490 points
1,261 views
0 votes
1 answer

How to extract file base name without path and extension in bash?

You don't actually have to call the ...READ MORE

answered May 31, 2019 in Linux Administration by Shubham
• 13,490 points
5,463 views
0 votes
1 answer

pipe to clipboard using Bash

Try xclip; xclip - command line interface to ...READ MORE

answered Jun 17, 2019 in Linux Administration by Shubham
• 13,490 points
654 views
0 votes
1 answer

Why do you need to put #!/bin/bash at the beginning of a script file?

It's a show so the *nix shell ...READ MORE

answered Jun 20, 2022 in Linux Administration by Rahul
• 3,380 points
666 views
0 votes
1 answer

What does '-gt' operator mean in Bash programming?

It's a math test. assist with testing ...READ MORE

answered Jun 20, 2022 in Linux Administration by Rahul
• 3,380 points
670 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP