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Updated SC2002 (markdown)

Mingye Wang
2015-09-18 21:54:51 -04:00
parent fcc0010ff9
commit 19a6c3b72d
1 changed files with 3 additions and 2 deletions
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3
SC2002.md

@@ -4,13 +4,14 @@
```sh ```sh
cat file | tr ' ' _ | grep a_ cat file | tr ' ' _ | grep a_
cat file | ( while read i; do echo "${i%?}"; done )
``` ```
### Correct code: ### Correct code:
```sh ```sh
tr ' ' _ < file | grep a_
< file tr ' ' _ | grep a_ # **simple commands only, won't work with compounds < file tr ' ' _ | grep a_ # **simple commands only, won't work with compounds
( while read i; do echo "${i%?}"; done ) < file # postfix works for everything
``` ```
### Rationale: ### Rationale: