Very Computer

by **Dogg** » Tue, 09 Jul 2002 09:27:05

For the life of me, I can't find a grep command that can do this.

I want to pipe the usernames that is in the passwd file to a text
file. Can grep do that for me.

doggy

by **Tony Curti** » Tue, 09 Jul 2002 09:34:25

>> On 7 Jul 2002 17:27:05 -0700,

> For the life of me, I can't find a grep command that can
> do this. I want to pipe the usernames that is in the
> passwd file to a text file. Can grep do that for me.

(grep is the wrong tool for this, you need something that
can extract pieces of lines not just find them; and you
mean "redirect" not "pipe".)

getent passwd | awk -F: '{print $1}'

is one way to do it.

hth
t

by **Petr Swedoc** » Tue, 09 Jul 2002 09:46:45

> For the life of me, I can't find a grep command that can do this.

> I want to pipe the usernames that is in the passwd file to a text
> file. Can grep do that for me.

You want awk. Man awk.

awk -F: '{print $1}' /etc/passwd > filename

Peace,

Petr

by **Andreas K?h?** » Tue, 09 Jul 2002 09:47:26

Submitted by "Doggy" to comp.unix.admin:

Quote:> For the life of me, I can't find a grep command that can do this.

> I want to pipe the usernames that is in the passwd file to a text
> file. Can grep do that for me.

> doggy

cut -d: -f1 < /etc/passwd > textfile

--
Andreas K?h?ri
--------------------------------------------------------------
Stable, secure, clean, free: www.netbsd.org

by **Andreas K?h?** » Tue, 09 Jul 2002 10:06:44

Submitted by "Petr Swedock" to comp.unix.admin:

>> For the life of me, I can't find a grep command that can do this.

>> I want to pipe the usernames that is in the passwd file to a text
>> file. Can grep do that for me.

> You want awk. Man awk.

I read that as "You want awk, man. awk."

Quote:
> awk -F: '{print $1}' /etc/passwd > filename

Shorter with cut.

--
Andreas K?h?ri
--------------------------------------------------------------
Stable, secure, clean, free: www.netbsd.org

by **Isaac Azathot** » Tue, 09 Jul 2002 13:06:21

>Submitted by "Doggy" to comp.unix.admin:
>> For the life of me, I can't find a grep command that can do this.

>> I want to pipe the usernames that is in the passwd file to a text
>> file. Can grep do that for me.

>> doggy

>cut -d: -f1 < /etc/passwd > textfile

The "<", here is superfluous and misleading, viz:

User Commands cut(1)

NAME
cut - cut out selected fields of each line of a file

SYNOPSIS
cut -b list [ -n ] [ file ... ]
cut -c list [ file ... ]
cut -f list [ -d delim ] [ -s ] [ file ... ]

by **Edward Ned Harve** » Tue, 09 Jul 2002 23:11:59

>>Submitted by "Doggy" to comp.unix.admin:
>>> For the life of me, I can't find a grep command that can do this.

>>> I want to pipe the usernames that is in the passwd file to a text
>>> file. Can grep do that for me.

>>> doggy

>>cut -d: -f1 < /etc/passwd > textfile

> The "<", here is superfluous and misleading, viz:

How is it misleading? I think it's pretty clear.

How about this instead:
cat /etc/passwd | cut -d: -f1 > usernames.txt

by **yt..** » Wed, 10 Jul 2002 02:17:29

> Submitted by "Petr Swedock" to comp.unix.admin:

>>> For the life of me, I can't find a grep command that can do this.

>>> I want to pipe the usernames that is in the passwd file to a text
>>> file. Can grep do that for me.

>> You want awk. Man awk.
> I read that as "You want awk, man. awk."

>> awk -F: '{print $1}' /etc/passwd > filename
> Shorter with cut.

Ubiquitous with awk.

-----.

--
"Hell, rocket science isn't even rocket science"
--A NASA rocket scientist, undernet, circa 1996

Very Computer

need some grep help

need some grep help

need some grep help

need some grep help

need some grep help

need some grep help

need some grep help

need some grep help

need some grep help