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Top Forums Shell Programming and Scripting how to use sed to sort out this question Post 302182573 by sonicstage on Monday 7th of April 2008 03:29:12 AM
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..
 

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Foreign(4)						     Kernel Interfaces Manual							Foreign(4)

NAME
Foreign - Logs contact attempts from unknown systems SYNOPSIS
/usr/lib/uucp/.Admin/Foreign DESCRIPTION
The /usr/lib/uucp/.Admin/Foreign file lists access attempts by unknown systems. The /usr/lib/uucp/remote.unknown shell script appends an entry to the Foreign file each time a remote computer that is not listed in the local /usr/lib/uucp/Systems file attempts to communicate with that local system. Someone with superuser authority can customize entries in the Foreign file to fit the needs of a specific site by modifying the remote.unknown shell script. EXAMPLES
The following is a sample entry in the Foreign file: Wed Sep 20 20:38:22 CDT 1989: call from the system merlin System merlin, which is not listed in the /usr/lib/uucp/Systems file, attempted to log in on September 20 at 10:38 p.m., but the uucp pro- gram did not allow the unknown system to log in. FILES
Describes access permissions for remote systems Describes accessible remote systems Records contacts from unknown systems in the Foreign file Contains the Foreign file and other uucp administrative files RELATED INFORMATION
Commands: uucp(1), uudemon.cleanu(4), uux(1) Daemons: cron(8), uucico(8), uuxqt(1) delim off Foreign(4)
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