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

Updated SC2234 (markdown)

Vidar Holen
2021-08-30 11:07:04 -07:00
parent 967f540265
commit 902ce9055a
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
SC2234.md

@@ -1,4 +1,4 @@
## Remove superfluous `(..)` around test command.
## Remove superfluous `(..)` around test command to avoid subshell overhead.
### Problematic code:
@@ -14,7 +14,7 @@
### Rationale:
You are wrapping a single test command in `(..)`, creating an unnecessary subshell. This serves no purpose, but is dramatically slower:
You are wrapping a single test command in `(..)`, creating an unnecessary subshell. This serves no purpose, but is significantly slower:
```
$ i=0; time while ( [ "$i" -lt 10000 ] ); do i=$((i+1)); done