m-lamonaca/dev-notes
1
0
Fork 0
mirror of https://github.com/m-lamonaca/dev-notes.git synced 2025-04-06 10:56:41 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Add command correction tricks

Browse source
This commit is contained in:
Marcello 2022-02-11 16:33:03 +01:00
parent 1471d6a054
commit c067c7d4b6
1 changed files with 4 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
Bash/Bash Scripting.md
View file

@ -60,6 +60,7 @@ command |& file.ext # link the first process' standard output & standard error
```bash ```bash
command_1; command_2; ... # execute command in sequence, one after the other 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 fail
command_1 && command_2 && .. # execute successive commands only if preceding ones succeeds
``` ```
### COMPOUND COMMANDs (multiple commands as one) ### COMPOUND COMMANDs (multiple commands as one)
@ -143,6 +144,9 @@ With Command Substitution, we effectively write a command within a command, and
```bash ```bash
$(inner_command) # $ --> value-expansion prefix $(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 ## Shell Variables