Drezil/Bash-Oneliner
1
0
Fork 0
mirror of https://github.com/onceupon/Bash-Oneliner.git synced 2024-11-22 21:07:00 +00:00
Code Issues Packages Projects Releases Wiki Activity

add variable

Browse Source 
get the first character of the variable
This commit is contained in:
onceupon 2018-04-12 14:23:32 +08:00 committed by GitHub
parent 283d52b361
commit 54a00b2569
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 9 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
README.md
View File

@ -838,9 +838,17 @@ var="some string"
echo ${#var} echo ${#var}
# 11 # 11
``` ```
##### get the first character of the variable
```bash
var="some string"
echo ${var%%"${var#?}"}
#s
```
##### replacement (e.g. remove the first leading 0 ) ##### replacement (e.g. remove the first leading 0 )
```bash ```bash
${var[@]#0} var="0050"
echo ${var[@]#0}
#050
``` ```
##### replacement (e.g. replace 'a' with ',') ##### replacement (e.g. replace 'a' with ',')