how to separate string by specific letter by cut command
时间: 2023-11-28 14:51:10 浏览: 39
To separate a string by a specific letter using the `cut` command, you can use the `-d` option to specify the delimiter and the `-f` option to specify the fields you want to extract.
For example, suppose you have a string "hello:world:how:are:you" and you want to separate it by the colon ":" character. You can use the following command:
```
echo "hello:world:how:are:you" | cut -d: -f1,3,5
```
This will output:
```
hello:how:you
```
Here, the `-d:` option tells `cut` to use the colon as the delimiter and the `-f1,3,5` option tells `cut` to extract the first, third, and fifth fields.
You can also use the `--output-delimiter` option to specify the delimiter for the output. For example:
```
echo "hello:world:how:are:you" | cut -d: -f1,3,5 --output-delimiter=|
```
This will output:
```
hello|how|you
```
Here, the `--output-delimiter=|` option tells `cut` to use the pipe "|" character as the delimiter for the output.
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