Shell Data Processing - Awk (grep and sed) - Output filtering
Table of Contents
1 - About
The awk command is a filter that combines the functions of:
- and sed
AWK is a (tool|language) for event-based data processing.
2 - Articles Related
3 - Management
3.1 - Function
4 - Example
4.1 - ls
Linux - ls (List directory content) with only acl information.
ls -l | grep pls.txt | awk '{print $1, $2, $3, $4}'
-rw-rw---- 1 oracle oinstall
4.2 - To get the cached memory
With the free command:
[[email protected] ~]$ free | grep Mem | awk '{print $7}'
137329856
[[email protected] ~]$ free
total used free shared buffers cached
Mem: 1058964444 1011201796 47762648 0 1272644 137329872
-/+ buffers/cache: 872599280 186365164
Swap: 101023736 4392 101019344
4.3 - Escape
Example on how to escape the :
awk '{print $1"\:"$2}'