Hi Guys,

I have been searching for alternative of stat command in Sun os. Can anybody help me to know how can I get process start time (I want it for older processes which are running for more than 15 days, hence ps and related options arent giving me expected result) or any option to find modification time since last epoch.
As I am not much familier with perl scrpting I would really appreciate if any body can help me to get this.

what about /proc/$$/stat, and look for starttime http://man7.org/linux/man-pages/man5/proc.5.html ?

yes, I am going to use /proc/$PID but I need to get the stat of that process. SInce I am on Sun Os I directly cant execute stat ("/proc/$pid"). only /proc/$PID wont give me exact process start time. Any other way to get start time of process will aslo work..

This should work:

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Thanks in tons!! Indeed its giving me output but I am not able to illustrate it. Could you please explain it in bit details for me.
If this is what giving me the process start time, you really made my life far better...

truss -t lstat64 -v lstat64 ls /proc/16973/as2>&1 | grep -w ct -->> This gives me Ambiguous output redirect error. but

truss -t lstat64 -v lstat64 ls /proc/16973 --> Is giving me below output. Could you please explain time stamp meaning in it.

d=0x05400000 i=3908 m=0040511 l=5 u=42715 g=40330 sz=832
at = Apr 14 11:58:27 BST 2013 [ 1365937107 ]
mt = Apr 14 11:58:27 BST 2013 [ 1365937107 ]
ct = Apr 14 11:58:27 BST 2013 [ 1365937107 ]

does mt and ct means mtime and ctime?

You are missing a space between "as" and "2".
These lines are indeed the timestamps the stat command would report (access, modification and change times).

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Superbb!! Thank you sooo much.. You really made my day far better... Thats again...

Hi,

Some how I am not able to grep the output of this turss... I have tried to get it in all way but some how I am not able to do it.. Can you please let me know how can I get only ct value stored in variable? I have tried using awk, sed but still not able to cut and store this value.. Can you help in this as well??

as far as I remember truss writes its output to stderr, so you need to redirect it to stdout:
truss .... 2>&1 | grep ... or awk ...
probably you only missed a space before 2

Thanks Pan.. But I m not missing any space... PFB..
truss -t lstat64 -v lstat64 ls /proc/23238/as 2>&1 | grep -w ct
Ambiguous output redirect

Even I tired the below
truss -t lstat64 -v lstat64 ls /proc/23238 | awk '/ct/ {print $9}' and few more things to cut the field..

and everytime I end up on

lstat64("/proc/23238", 0xFFBFFAF0) = 0
d=0x07E80000 i=37316 m=0040511 l=5 u=5705 g=5705 sz=832
at = Apr 22 04:37:11 BST 2013 [ 1366601831 ]
mt = Apr 22 04:37:11 BST 2013 [ 1366601831 ]
ct = Apr 22 04:37:11 BST 2013 [ 1366601831 ]
bsz=512 blks=2 fs=proc

Use a standard shell (ksh, bash), csh is useless for scripting.

M arleady running it in bash..

#!/bin/bash

You are not. The error message you posted (Ambiguous output redirect) is csh specific:

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ohh.. yes.. Got it.. I have looped several servers and ssh'ing those and executing truss on every one of them. Let me try how I can go to bash shell after ssh and then excute truss..
A big big thanks again!