Difference between revisions of "OPS435 Lecture 3 - Bash"
(Created page with 'Linux processes * ps * kill * top Using BASH History * history command * ! command Shell Expansions * Pathname expansion examples ** ls abc* ** echo abc? ** LANG=C;echo [A-Z]*…') |
|||
| Line 7: | Line 7: | ||
* history command | * history command | ||
* ! command | * ! command | ||
| + | |||
| + | User-define variables | ||
| + | * Setting | ||
| + | * Reading | ||
| + | |||
| + | Quoting & escaping | ||
| + | * Single quotes | ||
| + | * Double quotes | ||
| + | * Back quotes | ||
| + | * Escaping special characters | ||
Shell Expansions | Shell Expansions | ||
Revision as of 15:58, 29 January 2016
Linux processes
- ps
- kill
- top
Using BASH History
- history command
- ! command
User-define variables
- Setting
- Reading
Quoting & escaping
- Single quotes
- Double quotes
- Back quotes
- Escaping special characters
Shell Expansions
- Pathname expansion examples
- ls abc*
- echo abc?
- LANG=C;echo [A-Z]*
- brace expansion examples
- seq command
- echo {1..5}
- echo {a..m}
- touch file{1,2,3,4}
- touch file{1..4}
- touch file{2,4,6,8}
- mkdir ops435/{labs,notes}
- Tilde expansion examples
- echo ~
- Command substitution examples
- echo $(date)
- echo `date`
- Arithmetic expansion examples
- echo $((2 + 2))
- x=$((5/2))
- Parameter expansion examples
- echo $1
- echo ${11}
Input from the user
- read command
