Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: prompt to delete each record when pattern is found
Top Forums Shell Programming and Scripting prompt to delete each record when pattern is found Post 302475192 by Scrutinizer on Saturday 27th of November 2010 02:44:48 AM
Old 11-27-2010
I would have a look here first:
Code:
if [ $ans != n ]

n is unkonwn and it is not a variable
$ans is not being used later on

--
On a different note, I would change this:
Code:
grep -v "$name" phonebook > /tmp/phonebook
mv /tmp/phonebook phonebook

to this:
Code:
grep -v "$name" phonebook > /tmp/phonebook && mv /tmp/phonebook phonebook

In other words, only overwrite the original file if the operation was successful.

--
also, in future please use the code button and use proper indenting so your code becomes easier to read.
Last edited by Scrutinizer; 11-27-2010 at 03:50 AM..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Delete a block of text delimited by blank lines when pattern is found

I have a file which contains blocks of text - each block is a multi-lines text delimited by blank lines eg. <blank line> several lines of text ... pattern found on this line several more lines of text ... <blank line> How do you delete the block of text (including the blank lines) when... (17 Replies)
Discussion started by: gleu
17 Replies

2. Shell Programming and Scripting

How can I parse a record found in /etc/passwd into variables?

I am working with the Oracle 10.2.0.3 job scheduler on Solaris 10, and unfortunately, the scheduler executes scripts in such a way that several default shell environment variables are not defined. For example, $HOME, $USER, and $LOGNAME are missing. How can I parse the appropriate record in... (7 Replies)
Discussion started by: shew01
7 Replies

3. Shell Programming and Scripting

Finding Last occurance of another pattern when a pattern is found.

Hi, I have two files viz, rak1: $ cat rak1 rak2: $ cat rak2 sdiff rak1 rak2 returns: I want the lines that got modified, changed, or deleted preceding with the section they are in. I have done this so far: (1 Reply)
Discussion started by: rakeshou
1 Replies

4. Shell Programming and Scripting

comment/delete a particular pattern starting from second line of the matching pattern

Hi, I have file 1.txt with following entries as shown: 0152364|134444|10.20.30.40|015236433 0233654|122555|10.20.30.50|023365433 ** ** ** In file 2.txt I have the following entries as shown: 0152364|134444|10.20.30.40|015236433 0233654|122555|10.20.30.50|023365433... (4 Replies)
Discussion started by: imas
4 Replies

5. Shell Programming and Scripting

search a pattern and if pattern found insert new pattern at the begining

I am trying to do some thing like this .. In a file , if pattern found insert new pattern at the begining of the line containing the pattern. example: in a file I have this. gtrow0unit1/gctunit_crrownorth_stage5_outnet_feedthru_pin if i find feedthru_pin want to insert !! at the... (7 Replies)
Discussion started by: pitagi
7 Replies

6. Shell Programming and Scripting

Delete line if pattern not found

I thought that this was going to be quit simple using sed but i wasn't able to find a way to delete the second line of a text file if my pattern was not found in the line With awk i am completly useless :rolleyes: Any ideas? (2 Replies)
Discussion started by: jepeto
2 Replies

7. Shell Programming and Scripting

Reject the record if the record in the next line does not satisfy the pattern

Hi, I have a input file with the following entries: 1one 2two 3three 1four 2five 3six 1seven 1eight 1nine 2ten The output should be 1one 2two 3three 1four 2five 3six (2 Replies)
Discussion started by: supchand
2 Replies

8. Shell Programming and Scripting

Delete a pattern present in file 2 from file 1 if found in file 1.

I have two files File1 ==== 1|2000-00-00|2010-02-02|| 2| 00:00:00|2012-02-24|| 3|2000-00-00|2011-02-02|| File2 ==== 2000-00-00 00:00:00 I want the delete the patterns which are found in file 2 from file 1, Expected output: File1 ==== (5 Replies)
Discussion started by: machomaddy
5 Replies

9. Shell Programming and Scripting

If first pattern is found, look for second pattern. If second pattern not found, delete line

I had a spot of trouble coming up with a title, hopefully you'll understand once you read my problem... :) I have the output of an ldapsearch that looks like this: dn: cn=sam,ou=company,o=com uidNumber: 7174 gidNumber: 49563 homeDirectory: /home/sam loginshell: /bin/bash uid: sam... (2 Replies)
Discussion started by: samgoober
2 Replies

10. Shell Programming and Scripting

Delete only if duplicates found in each record

Hi, i have another problem. I have been trying to solve it by myself but failed. inputfile ;; ID T08578 NAME T08578 SBASE 30696 EBASE 32083 TYPE P func just test func chronology func cholesterol func null INT 30765-37333 INT 37154-37318 Link 5546 Link 8142 (4 Replies)
Discussion started by: redse171
4 Replies

LEARN ABOUT CENTOS

ragator

RAGATOR(1)						      General Commands Manual							RAGATOR(1)

NAME

       ragator - aggregate argus(8) data file entries.

COPYRIGHT

       Copyright (c) 2000-2003 QoSient. All rights reserved.

SYNOPSIS

       ragator [-f ragator.conf] [raoptions]

DESCRIPTION

       Ragator	reads argus(8) data from an argus-file, and merges matching argus flow activity records together.  In its default mode of options,
       this effectively converts argus(8) files from detail to non-detail mode, and merges periodic flow report records to a single argus  record,
       thus compressing the argus(8) file to a reduced size.

       You can modify the aggregation strategy used by ragator to merge records together, by using the -f ragator.conf option.	See ragator(5) for
       a complete description of the format and syntax of the flow model file.

OPTIONS

       Ragator, like all ra based clients, supports a number of ra options including filtering of input argus records through a terminating filter
       expression.  See ra(1) for a complete description of ra options.

AUTHORS

       Carter Bullard (carter@qosient.com).

SEE ALSO

       ragator(5) ra(1), rarc(5), argus(8) tcpdump(1),

								   21 July 1995 							RAGATOR(1)
All times are GMT -4. The time now is 05:23 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy