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Top Forums Shell Programming and Scripting Problem with UNIX cut command Post 36378 by oombera on Wednesday 28th of May 2003 09:57:28 AM
Old 05-28-2003
google, where does $A get it's value in your script? Or do you mean that it should be used inside the loop? If it is, then you're doing a ton more work reading the file again in each iteration of the loop..

kevin, if all you want to do is display the names, part of google's script will work for you with a small addition:
Code:
awk -F: '{print "Found " $1}' /etc/passwd

If you want to operate on each name, you could use this:
Code:
#!/usr/bin/bash
while read A
do
  USER=`echo “$A” | cut -f 1 -d “:”`
  echo “Found $USER”
done < /etc/passwd

But I still think your initital problem was using single quotes by mistake...
 

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SU(1)									FSF								     SU(1)

NAME
su - run a shell with substitute user and group IDs SYNOPSIS
su [OPTION]... [-] [USER [ARG]...] DESCRIPTION
Change the effective user id and group id to that of USER. -, -l, --login make the shell a login shell -c, --commmand=COMMAND pass a single COMMAND to the shell with -c -f, --fast pass -f to the shell (for csh or tcsh) -m, --preserve-environment do not reset environment variables -p same as -m -s, --shell=SHELL run SHELL if /etc/shells allows it --help display this help and exit --version output version information and exit A mere - implies -l. If USER not given, assume root. AUTHOR
Written by David MacKenzie. REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>. COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. SEE ALSO
The full documentation for su is maintained as a Texinfo manual. If the info and su programs are properly installed at your site, the com- mand info su should give you access to the complete manual. su (coreutils) 4.5.3 February 2003 SU(1)
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