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Full Discussion: Print each user at time
Top Forums Shell Programming and Scripting Print each user at time Post 302467669 by pharyx on Saturday 30th of October 2010 05:38:22 PM
Old 10-30-2010
Quote:
Originally Posted by testman84
I want to print each user at time and
I wrote :

cat /etc/passwd | grep "/home" | cut -d: -f > USERS
for USER in `cat USERS`
do
echo "$user"
done

but it didn't work

thanks
Useless use of cat here: cat /etc/passwd | grep "/home"
Code:
grep "/home" /etc/passwd

does the same.

As ygemic mentioned, have a look at the variable names in your for statement. You echoing an empty variable.

I don't know why you redirect the output to a file
Code:
grep "/home" /etc/passwd | cut -d: -f1

does what you want.
This User Gave Thanks to pharyx For This Post:
testman84
 

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LEARN ABOUT X11R4

zgrep

ZGREP(1)                                                      General Commands Manual                                                     ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep  options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

                                                                                                                                          ZGREP(1)
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