#!/usr/local/bin/bash

#
# ps replacement for chrooted environment
#
# prints out the ACTUAL processes ONLY within the environment present
# based on nice(1) values
#
# Zoidial, Inc.
# Eric Thern,  eric NOSPAMat zoidial.com
#
# October 22, 2002
#
#
# In this case, the chrooted environment is running with:
# nice -n 2 chroot /chroot /bin/sh /etc/rc
#
# and all users have a nice of 12 via /etc/login.conf priority option
#
# we can assume everything runs as one of these two nices,
# this way we can track all processes within this particular chroot.
# 

echo ""
echo "This is 'ps' for chrooted environments"
echo "Be patient - this is slower than normal ps!" 
echo ""
echo "USER      UID     PID     PPID    CPU     PRI     NI      VSZ     RSS     WCHAN   STAT    TT      TIME    COMMAND"
ps -o user -awwwxl | awk '{if ($7 == 2 || $7 == 12) for (n=1; n <= NF; n++) { if (n <= 13) { ORS = "\t"; print $n;} else {ORS = " "; print $n; }; }; if ($7 == 2 || $7 == 12) print "\n" }'