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how to use sed to sort out this question

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Top Forums Shell Programming and Scripting how to use sed to sort out this question
# 1  
Old 04-07-2008
how to use sed to sort out this question
root:x:0:0:0000-Admin(0000):/:/sbin/sh
rootcsh:x:0:1:0000-Admin(0000):/:/bin/csh
nocol:x:6312:630:NOCOL Monitor,,,:/usr/local/lib/nocol-client:/usr/local/bin/bash
nobody:x:60001:60001:uid no body:/:/usr/local/bin/bash
noaccess:x:60002:60002:uid no access:/:/usr/local/bin/bash
nobody4:x:65534:65534:SunOS 4.x NFS Anonymous Access User:/:/usr/local/bin/bash
+@c_staff::::::
+::::::/usr/local/sbin/nologin

all above content are in a file called passwd.txt
username:password:uid:gid:gcos-field:home-dir:login-shell
(i)write a shell script and make above output the fields:username,shell,home directory
(ii)and also removes all the lines which start with a '+'
Last edited by sonicstage; 04-07-2008 at 04:43 AM..
# 2  
Old 04-07-2008
is this homework?

what have you done so far?
# 3  
Old 04-07-2008
i only did very little
sed -e '/^+/d' passwd.txt
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