Awk: Difference between revisions
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I wanted to find out how much resident memory [[xfce4]] was using on my system, and it appears most xfce applications start with "xf": | I wanted to find out how much resident memory [[xfce4]] was using on my system, and it appears most xfce applications start with "xf": | ||
$ ps auwx | $ ps auwx | awk '/xf/{print $5}' | ||
15924 | 15924 | ||
14668 | 14668 | ||
| Line 11: | Line 11: | ||
I wanted to use awk to add the results together instead of doing it manually: | I wanted to use awk to add the results together instead of doing it manually: | ||
$ ps auwx | $ ps auwx | awk '/xf/{ tot += $5 } END { print tot }' | ||
69108 | 69108 | ||
''N.B.'' This can be misleading in the case of programs that use large amounts of shared memory (like java). | |||
Revision as of 09:09, 14 December 2005
I wanted to find out how much resident memory xfce4 was using on my system, and it appears most xfce applications start with "xf":
$ ps auwx | awk '/xf/{print $5}'
15924
14668
11948
11764
12944
16264
1860
I wanted to use awk to add the results together instead of doing it manually:
$ ps auwx | awk '/xf/{ tot += $5 } END { print tot }'
69108
N.B. This can be misleading in the case of programs that use large amounts of shared memory (like java).
