procps/testsuite/ps.test/ps_personality.exp

#
# check the ps personalities
#
set ps ${topdir}src/ps/pscommand

set pers_match { 
  bsd       "\\s+PID\\s+TTY\\s+STAT\\s+TIME\\s+COMMAND\\r"
  linux     "\\s+PID\\s+TTY\\s+TIME\\s+CMD\\r"
  old       "\\s+PID\\s+TTY\\s+STAT\\s+TIME\\s+COMMAND\\r"
  }

foreach { pers match } $pers_match  {
  set test "ps with $pers personality"
  set  env(PS_PERSONALITY) $pers
  spawn $ps
  expect_pass "$test" $match
}