7x31/shellcheck
1
0
Fork 0
mirror of https://github.com/koalaman/shellcheck.git synced 2025-10-03 19:29:44 +08:00
Code Issues Packages Projects Releases Wiki Activity

Refer to relevant bash manual section.

Adam
2017-10-05 13:09:23 -06:00
parent e3537c95ed
commit 3831fda46b
1 changed files with 1 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
SC2115.md

@@ -20,6 +20,7 @@ Using `:?` will cause the command to fail if the variable is null or unset. Simi
In the case command substitution, assign to a variable first and then use `:?`. This is relevant even if the command seems simple and obviously correct, since forks and execs can fail due to external system limits and conditions, resulting in a blank substitution. In the case command substitution, assign to a variable first and then use `:?`. This is relevant even if the command seems simple and obviously correct, since forks and execs can fail due to external system limits and conditions, resulting in a blank substitution.
For more details about `:?` see the "Parameter Expansion" section of the Bash man page.
### Exceptions: ### Exceptions:
None. None.