• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 495
  • Last Modified:

What is meant by variable=${1:-0} in shell script?

What is meant by variable=${1:-0} in shell script?
1 Solution
              If parameter is set and is non-null then substitute  its  value;
              otherwise substitute word.

       Positional parameters, parameters denoted by a number, may be  assigned
       values with the set special built-in command.  Parameter $0 is set from
       argument zero when the shell is invoked.
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now