BASH Script, read a line from a file

Dev Shed Forums Sponsor:

Be the architects of evolution and help create the mobile internet future. It’s your move---enter to win here!

May 17th, 2004, 10:44 PM

CGrantham

Contributing User

Join Date: Mar 2004

Posts: 43

Time spent in forums: < 1 sec
Reputation Power: 5

BASH Script, read a line from a file

Hi, I'm trying to write a BASH script that uses a file containing a list of user names:
cg776
jcq448
dfs
etc...
I want to read each line into a string, then run:

Code:

               finger | grep FRIEND

or something to that affect, then I need to determine if the user supports real time chat (the '*' somewhere in the line of output from finger for that user I think...)

If anyone could lend a hand it would be appreciated...

May 18th, 2004, 04:10 AM

christo

Introspective

Join Date: Nov 2001

Location: London, UK

Posts: 3,296

Time spent in forums: 3 Days 1 h 5 m 42 sec
Reputation Power: 101

I have a file called names, which looks like:

chris
cristi
spira
erik

I have a script called namelooper.sh which looks like:

Code:

#!/bin/bash

NAMES=`cat names`
for i in $NAMES
do
        RESULT=`finger $i`
        echo $RESULT
done

when I chmod 777 namelooper.sh and then run it, I get the following output - tidy it up as you like:

Quote:

bash-2.05b# ./namelooper.sh
Login: chris Name: chris lacy-hulbert Directory: /home/chris Shell: /bin/bash Office: On since Tue May 18 09:51 (BST) on pts/0 from office.enovi.com On since Tue May 18 09:53 (BST) on pts/2 from office.enovi.com 2 minutes 27 seconds idle No mail. No Plan.
finger: christi: no such user.

Login: erik Name: (null) Directory: /dev/null Shell: /bin/false Never logged in. No mail. No Plan.
Login: spira Name: spiration cvs user Directory: /home/spira Shell: /bin/bash Last login Mon May 5 10:21 2003 (BST) on pts/2 from 10.0.0.15 No mail. No Plan.
Login: angus Name: Fred Lacy-Hulbert Directory: /home/fred Shell: /bin/bash Never logged in. No mail. No Plan.
Login: root Name: (null) Directory: /root Shell: /bin/bash Last login Thu Apr 29 19:40 (BST) on pts/2 from 192.168.1.10 Mail last read Wed Sep 24 18:53 2003 (BST) No Plan.

hth
christo

__________________
.
Spiration channels: Free scripts, programming tutorials and articles
Dotcut alerts: Online Press cuttings / news alerts
Clearprop: UK microlight school, wiltshire
Uk dating: UK safe dating with Topdates
About Christo
.
.

Last edited by christo : October 30th, 2006 at 08:25 AM.

July 18th, 2004, 01:50 PM

tgkprog

Registered User

Join Date: Jul 2004

Posts: 3

Time spent in forums: 25 m
Reputation Power: 0

how do i get to see the lines i read and search them for a particular char - I need to read and ignore a file till i find a certain string and then write out the rest of the file in to another file using sh ... can some one help ? thanks

i tried using cat and a for loop but that breaks up the lines into words ... and the echo -n option does not work with my sh ... so it puts the words in seperate lines .

Viewing: Dev Shed Forums > Operating Systems > UNIX Help > BASH Script, read a line from a file

« Previous Thread | Next Thread »

Thread Tools	Search this Thread
Email this Page	Search this Thread: Advanced Search
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread:

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts vB code is On Smilies are On [IMG] code is On HTML code is Off

View Your Warnings | New Posts | Latest News | Latest Threads | Shoutbox

Forum Jump