shell notes

gistfile1.sh

# http://superuser.com/a/305141
# http://askubuntu.com/a/63203
`GZIP=-9 tar --use-compress-program=pigz -czvf foo.tgz foo`

# inspect `php5-fpm` (or anything else)
strace -E trace=open,read,write,readv,writev,recv,recvfrom,send,sendto -s 999 $(ps axu|grep php-fpm|awk ' { print $2 } ' | xargs -i echo -n ' -p {}')

# inspect the interesting parts on php-fpm on the wire (assuming its listening to port 9000 or 9001)
SELECT='port 9000 or port 9001'; CUT_AT=400; ngrep -Wbyline -dany -q "" $SELECT \
  | grep -E '\[AP?\]$' -A19 \
  | grep -E '^[A-Z].{1,30}: ' -B3 -A5 \
  | sed -e '/.\{'"${CUT_AT}"'\}/ s/^\(.\{400\}\).*$/\1 @@@__truncated__@@@/'

# open file handles by process name
lsof -a $(ps axu|grep php-fpm|awk ' { print $2 } ' | xargs -i echo -n ' -p {}') | wc -l

# disk usage with iuse
df -h --output=source,target,ipcent,pcent
df -hi

# find inodes used per dir
# http://unix.stackexchange.com/a/117094
find / -xdev -printf '%h\n' | sort | uniq -c | sort -k 1 -n

# uninstall macports package recursively (with dependencies)
sudo port -v uninstall --follow-dependents xxx

# identify leaking processes 
ps --sort -rss -eo rss,pid,command | head