Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Grep from a file variable
Top Forums UNIX for Dummies Questions & Answers Grep from a file variable Post 42536 by jagannatha on Thursday 30th of October 2003 03:02:08 PM
Old 10-30-2003
The text is redirected to a file, I need to verify that the script actually returned something useful, rather than "Object does not exist"

Hopefully my grep command looks at the output file contents, to verify that the script actually returned useful data, if not delete all related files.

I hope this is more insightful.

Thanks for the quick response.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to grep a variable?

Hi, I'd like to grep a variable that I saved in the program. Like grep '0\$variable1' file1 Does someone know what's wrong with this command? Thanks a lot! (2 Replies)
Discussion started by: whatisthis
2 Replies

2. Shell Programming and Scripting

read in variable data from another file - grep

Hello! I think this should be an easy solution. I have a large file with many fields of data. The first field has a unique identifier (a subject number) for every record for a chunk of data. Something like this: There were ten experimental conditions (ec), but the ec is identified by only... (11 Replies)
Discussion started by: ccox85
11 Replies

3. Shell Programming and Scripting

Grep to return a code from accessing variable file name

All I want to do is find out if the string 'NO' is in a file by checking for a return code of 0 if there is a match. The grep works fine on the command line directly naming the file but I am obviously not using the correct syntax within the shell script as I consistently get the error message ... (5 Replies)
Discussion started by: SusanDAC
5 Replies

4. Shell Programming and Scripting

Grep Variable From File

Hey guys, I'm attempting to compare the contents of two files that are not identical on a Solaris 10 box. We are under audit and I need to do some comparisons of our application accounts with our unix accounts. I essentially want to pull a line from one file and search the second for an equal... (1 Reply)
Discussion started by: kaledragule
1 Replies

5. Shell Programming and Scripting

grep using variable

how can I use grep with a variable to find a value? cat data.out Hello World grep "Hello World" data.out Hello World ## Value found I want to do something like this but can't seem to get it to work any suggestions would be appreciated. var="Hello World" grep $var data.out (3 Replies)
Discussion started by: BeefStu
3 Replies

6. Shell Programming and Scripting

Grep through a variable

I want to search a text in file but that file is pointing to variable. ex: file=there was nothing special grep "there was nothing" $file but its not working . Can u let me know that how we can use variable($file) in grep command. Please use code tags (6 Replies)
Discussion started by: allthanksquery
6 Replies

7. Shell Programming and Scripting

grep using variable

I have a pattern like: column "5" is missing PS: the no is in double quotes. The number usally changes, so we use a loop to grep. grep 'column "$number" is missing' filename.txt But it is not working.... How to solve this? (2 Replies)
Discussion started by: karumudi7
2 Replies

8. Shell Programming and Scripting

(BASH) Using a loop variable to grep something in a file?

Hi, I have a loop running until a variable L that is read previously in the full script. I'd like to grep some information in an input file at a line that contains the value of the loop parameter $i. I've tried to use grep, but the problem is nothing is written in the FILE files. It seems grep... (5 Replies)
Discussion started by: DMini
5 Replies

9. Shell Programming and Scripting

command to grep the variable from file

Hi, I am looking for the following: 1. A command to 'grep' the variable from a file 2. And check whether the entered variable is empty in that file I have a file as given below: IAGLOBAL_USERID=admin I want to check with a whether the variable contains a value, say here its admin if... (2 Replies)
Discussion started by: dbashyam
2 Replies

10. Shell Programming and Scripting

grep variable

I've got a file that I'm trying to grep through that looks like this: alpha1 alpha2 alpha3 beta1 beta2 gamma5 gamma6 gamma7 gamma8 gamma9 and I want the output to only contain the line with the highest value for each, so the output I want is: alpha3 beta2 gamma9 I also need... (11 Replies)
Discussion started by: tiberione
11 Replies

LEARN ABOUT CENTOS

yum-verify

yum-verify(1)															     yum-verify(1)

NAME

       yum verify plugin

SYNOPSIS

       yum [options] verify [package ...]

DESCRIPTION

       This plugin extends yum with some commands that give verification information on the installed system, much like rpm -V. You can change how
       the verification is done and which files it applies to.

       added yum commands are:
	* verify
	* verify-rpm
	* verify-all

       all of which take the same arguments as the list yum command, obviously you can only verify packages that are installed on the system.

       verify Is the generic verification command, and is intended to give the most useful output. It removes all false matches  due  to  multilib
	      and ignores changes to configuration files by default.

       verify-rpm
	      Is meant to be 100% compatible with rpm -V output, and any differences should be considered as bugs.

       verify-all
	      Is used to list all the differences, including some that rpm itself will ignore.

GENERAL OPTIONS

       These are the options added to yum that are available in the verify commands.  They are:

       --verify-filenames
	      This option is used to limit the filenames that the packages will perform verification.

       --verify-configuration-files
	      This  option is only useful in the generic verify command, and will enable/disable verification of files that are tagged as configu-
	      ration files.

EXAMPLES

       To do the same as rpm -Va, use:

	      yum verify-rpm

       To verify the packages starting with the name yum, use:

	      yum verify 'yum*'

       To verify the binaries that are in a bin directory, use:

	      yum verify --verify-filenames='*bin/*'

       To verify all include files, Eg. for multilib problems, use:

	      yum verify-all --verify-filenames='/usr/include/*'

SEE ALSO

       yum (8)
       yum.conf (5)
       the verify.conf file in /etc/yum/plugins.d

AUTHORS

       James Antill <james.antill@redhat.com>.

BUGS

       Currently yum-verify does not do verify-script checking or dependency checking,
       only file checking.

       Should you find any other bugs, you should first
       consult the FAQ section on http://yum.baseurl.org/wiki/Faq and if unsuccessful
       in finding a resolution contact the mailing list: yum-devel@lists.baseurl.org.
       To file a bug use http://bugzilla.redhat.com for Fedora/RHEL/Centos
       related bugs and http://yum.baseurl.org/report for all other bugs.

James Antill							   01 March 2008						     yum-verify(1)
All times are GMT -4. The time now is 07:23 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy