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Improve 'get the first character of variable

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I-Man Ng 2019-05-09 15:41:47 +08:00 committed by GitHub
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@ -1018,9 +1018,13 @@ echo ${#var}
```
##### get the first character of the variable
```bash
var="some string"
var=string
echo "${var:0:1}"
#s
#or
echo ${var%%"${var#?}"}
#s
```
##### remove the first or last string from variable
```bash