ps command does not have "no-headers" flag in Mac OS X

[dotansimha]

The command:
ps --no-headers -p 49223 -o ppid

fails and gives this errors:

Error: Command failed: ps --no-headers -p 49223 -o ppid
ps: illegal option -- -
usage: ps [-AaCcEefhjlMmrSTvwXx] [-O fmt | -o fmt] [-G gid[,gid...]]
          [-g grp[,grp...]] [-u [uid,uid...]]
          [-p pid[,pid...]] [-t tty[,tty...]] [-U user[,user...]]
       ps [-L]

The flag --no-headers does no exists in Mac OS X.

[dotansimha]

Fixed