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Keep /repeatedly executing the same command (e.g Repeat 'wc -l filename' every 1 second),
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onceupon 2017-09-12 16:48:24 +08:00 committed by GitHub
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@ -1423,7 +1423,15 @@ exit by control + c
^C ^C
``` ```
##### Keep /repeatedly executing the same command (e.g Repeat 'wc -l filename' every 1 second)
```bash
watch -n 1 wc -l filename
```
##### Print commands and their arguments when execute (e.g. echo `expr 10 + 20 `)
```bash
set -x; echo `expr 10 + 20 `
```
## System ## System
[[back to top](#handy-bash-oneliner-commands-for-tsv-file-editing)] [[back to top](#handy-bash-oneliner-commands-for-tsv-file-editing)]