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the-art-of-command-line
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Colas BROUX 2017-05-02 00:57:41 +00:00 committed by GitHub
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@ -95,6 +95,8 @@ Notes:
- If you are halfway through typing a command but change your mind, hit **alt-#** to add a `#` at the beginning and enter it as a comment (or use **ctrl-a**, **#**, **enter**). You can then return to it later via command history. - If you are halfway through typing a command but change your mind, hit **alt-#** to add a `#` at the beginning and enter it as a comment (or use **ctrl-a**, **#**, **enter**). You can then return to it later via command history.
- If you want to type a command but you remember only the beginning, hit **tab** to complete your command or double hit **tab** to display all possibilities.
- Use `xargs` (or `parallel`). It's very powerful. Note you can control how many items execute per line (`-L`) as well as parallelism (`-P`). If you're not sure if it'll do the right thing, use `xargs echo` first. Also, `-I{}` is handy. Examples: - Use `xargs` (or `parallel`). It's very powerful. Note you can control how many items execute per line (`-L`) as well as parallelism (`-P`). If you're not sure if it'll do the right thing, use `xargs echo` first. Also, `-I{}` is handy. Examples:
```bash ```bash
find . -name '*.py' | xargs grep some_function find . -name '*.py' | xargs grep some_function