Prev: what is the meaning of IFS ???
Next: list of Dirs
From: Smith on 18 Jun 2006 01:32
Hi,
I'm trying to grep a PID (eg 1234)
currently i'm ps -ef grep 1234 |awk '{print $2}' |wc to make sure that i'm
grepping the exact 1234 (4 digit PID) and not 12345.

Is there more elagant and efficient way of grepping the PID, 1234?

Thanks and regards


From: Xicheng Jia on 18 Jun 2006 01:38
Smith wrote:
> Hi,
> I'm trying to grep a PID (eg 1234)
> currently i'm ps -ef grep 1234 |awk '{print $2}' |wc to make sure that i'm
> grepping the exact 1234 (4 digit PID) and not 12345.
>
> Is there more elagant and efficient way of grepping the PID, 1234?

no need to use grep, use awk directly:

ps -ef | awk '$2==24'

Xicheng

From: Xicheng Jia on 18 Jun 2006 01:42
Xicheng Jia wrote:
> Smith wrote:
> > Hi,
> > I'm trying to grep a PID (eg 1234)
> > currently i'm ps -ef grep 1234 |awk '{print $2}' |wc to make sure that i'm
> > grepping the exact 1234 (4 digit PID) and not 12345.
> >
> > Is there more elagant and efficient way of grepping the PID, 1234?
>
> no need to use grep, use awk directly:
>
> ps -ef | awk '$2==24'

my bad, I was testing PID==24 in my own machine, and forgot to change
it back to 1234 to suit your case when pasting. :(

ps -ef | awk '$2==1234'

Xicheng

From: Smith on 18 Jun 2006 02:20
XiCheng,
Thanks, now worry about the mistake, I understand that 24 is the PID you use
for your testing hahaha


"Xicheng Jia" <xicheng(a)gmail.com> wrote in message
news:1150609333.551432.270560(a)i40g2000cwc.googlegroups.com...
> Xicheng Jia wrote:
>> Smith wrote:
>> > Hi,
>> > I'm trying to grep a PID (eg 1234)
>> > currently i'm ps -ef grep 1234 |awk '{print $2}' |wc to make sure that
>> > i'm
>> > grepping the exact 1234 (4 digit PID) and not 12345.
>> >
>> > Is there more elagant and efficient way of grepping the PID, 1234?
>>
>> no need to use grep, use awk directly:
>>
>> ps -ef | awk '$2==24'
>
> my bad, I was testing PID==24 in my own machine, and forgot to change
> it back to 1234 to suit your case when pasting. :(
>
> ps -ef | awk '$2==1234'
>
> Xicheng
>


From: kenneth kahn on 18 Jun 2006 06:24
> "Xicheng Jia" <xicheng(a)gmail.com> wrote in message
> ps -ef | awk '$2==1234'

Just for my education, is there any difference between your example and
the following:

ps -e | awk '$1==1234'

Would either way be correct; if not why not?
 |  Next  |  Last
Pages: 1 2
Prev: what is the meaning of IFS ???
Next: list of Dirs