Bash: how to test whether a variable is set?
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| Project: | Linux software |
| Component: | Documentation |
| Category: | support request |
| Priority: | normal |
| Assigned: | Unassigned |
| Status: | closed |
| Related pages: | #5382: Bash: validating variables and parameters |
| Tags: | bash script |
Description
Bash: how to test whether a variable is set?
For example, in a bash script, ${1} stands for the first argument the script was called with. However, ${1} might not be set.
How to test this?
Comments
#1
#2
Automatically closed -- issue fixed for 2 weeks with no activity.