Is it possible to format ps RSS (memory) output to be more human friendly?
ps ux | numfmt --header --to=iec --field 5,6 --padding 6
You need coreutils >= 8.25
I personally prefer this one:
ps -eo pmem,comm,pid,maj_flt,min_flt,rss,vsz --sort -rss | numfmt --header --to=iec --field 4-5 | numfmt --header --from-unit=1024 --to=iec --field 6-7 | column -t | head
It seems like there is no appropriate flag in ps
, so you need to either use a different tool (I personally prefer htop
) or mess with ps
output a little. I guess you want to stick with ps
.
Here's a dirty little script I've made as an example:
# get terminal width
WIDTH=`tput cols`
# pipe stdin to awk
cat | \
awk '\
BEGIN {
# set output format
CONVFMT="%.2f"
}
NR==1 {
# search first line for columns that need to be converted from K to M
for (i=1;i<=NF;i++)
# add condition for new columns if you want
if ($i=="VSZ" || $i=="RSS") {
# column numbers are stored in an array
arr[i]=i;
$i = $i "(MB)"
}
}
NR > 1 {
# edit appropriate columns
for (i in arr)
$i=$i/1024;
}
{
# print every line
print $0
}' | \
# format the output into columns and trim it to terminal width
column -t | cut -c 1-$WIDTH
Save it to a file, say prettyps.sh
, make it executable:
chmod +x prettyps.sh
and use as follows:
ps ux | /path/to/prettyps.sh
Using this script has the downside of adding extra processes to ps output, but nevertheless it works:
$ ps ux | ./prettyps.sh USER PID %CPU %MEM VSZ(MB) RSS(MB) TTY STAT START TIME COMMAND pono 2658 0.0 0.0 358.88 4.29 ? Sl 02:33 0:00 /usr/bin/gnome-keyring ... output truncated... pono 4507 0.0 0.0 19.14 1.81 pts/1 S+ 03:29 0:00 man pono 4518 0.0 0.0 10.55 0.96 pts/1 S+ 03:29 0:00 pager pono 4727 0.7 0.9 1143.59 53.08 ? Ssl 04:10 0:24 /opt/sublime_text/subl pono 4742 0.1 0.4 339.05 25.80 ? Sl 04:10 0:03 /opt/sublime_text/plug pono 5177 0.0 0.0 19.23 1.32 pts/0 R+ 05:05 0:00 ps pono 5178 0.0 0.0 4.34 0.61 pts/0 S+ 05:05 0:00 /bin/sh
Hope this helps to find a way that suits you.