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|
#!/bin/bash
cgroup=${1:-firefox~$(id -u)}
show_new_pids()
{
if [ -e "$procs" ]
then
sort < "$procs" > pids
if [ -e old-pids ]
then
comm -13 old-pids pids
else
cat pids
fi
mv pids old-pids
fi
}
show_pid_comm()
{
local pid comm
pid=$1
if 2>/dev/null read comm < /proc/$pid/comm
then
echo "$pid $comm"
else
echo $pid '(disappeared)' >&2
fi
}
each_line()
{
local line
while read line
do "$@" "$line"
done
}
RUNTIME_DIR=$(mktemp -d) || exit
trap 'cd /; rm -rf "$RUNTIME_DIR"' EXIT
cd "$RUNTIME_DIR"
enable -f /usr/lib/bash/sleep sleep
procs=/sys/fs/cgroup/$cgroup/cgroup.procs
while true
do
show_new_pids
sleep 1
done | each_line show_pid_comm
|
