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Add command correction tricks

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Marcello 2022-02-11 16:33:03 +01:00
parent 1471d6a054
commit c067c7d4b6
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Bash/Bash Scripting.md
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@ -60,6 +60,7 @@ command |& file.ext # link the first process' standard output & standard error
```bash
command_1; command_2; ... # execute command in sequence, one after the other
command_1 || command_2 || ... # execute successive commands only if preceding ones fail
command_1 && command_2 && .. # execute successive commands only if preceding ones succeeds
```
### COMPOUND COMMANDs (multiple commands as one)
@ -143,6 +144,9 @@ With Command Substitution, we effectively write a command within a command, and
```bash
$(inner_command) # $ --> value-expansion prefix
command !* # !* expands to everything except the first argument in the previous line
command !$ # refers to the last argument of the previous command
sudo !! # !! expands to the entire previous command
```
## Shell Variables