Question

I’m looking for a short awk / sed script to extract the rss information from the proc/smaps file which has the following records format:

77f73000-77f74000 rw-s 00000000 fd:00 230116     /var/lib/mylib.so
Size:                 4 kB
Rss:                  4 kB
Shared_Clean:         0 kB
Shared_Dirty:         0 kB
Private_Clean:        4 kB
Private_Dirty:        0 kB

The output I’m looking for is:

/var/lib/mylib.so 4

• extra bonus if the records can be sorted by rss size (large chunks first)

Thanks in advance,
Avner

Answer 1

Not sure about your selection criteria, but this only matches when an actual path is listed:

awk 'NF > 3 { f = $NF } $1 ~ /^Rss/ && f ~ /\// { print f, $2 }'

Append sort -nr -k2,2 to do descending sort on second column.