Sponsored Content
Top Forums Shell Programming and Scripting Stupid question to check if variable is empty Post 302925906 by RavinderSingh13 on Thursday 20th of November 2014 05:58:01 AM
Old 11-20-2014
Hello nua7,

Kindly let us know the complete input for same, also os information will be helpful too for us to guide/help you.


Thanks,
R. Singh
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Stupid Question?

I have a SparcStation 10 and it came with an external CD Rom Drive. I am trying to install Solaris 2.6 Server on this machine from the Cd Rom. At the OK> prompt I type "boot cdrom - browser" and I get an error: scsi device not found:error = -1 or something to that effect. Does anyone have any... (9 Replies)
Discussion started by: jskillet
9 Replies

2. UNIX for Dummies Questions & Answers

Stupid question...

Hello, I've always been around systems that ran windows in one version or another, so I'm familiar with what/when/where/drivers/etc for that. I want to build a unix box to use as a place to learn and become more familiar with unix. I would also like to eventually convert it to a server to... (6 Replies)
Discussion started by: Cortney
6 Replies

3. UNIX for Dummies Questions & Answers

Stupid question

I need to convert a Unix file to a 'Dos' file. Ie if I look at the converted file in 'vi' on Unix it will have '^M' at the end of each line. Hopefully it won't be a case of reading each line in turn and adding a \n. I've heard there is some sort of unix2dos command but it is not recognised on... (2 Replies)
Discussion started by: Bab00shka
2 Replies

4. UNIX for Dummies Questions & Answers

stupid question!?

fedora core 2 xx8. 5xx version (not sure! not sure how to look it up either..(except on boot sorry!!)).. :( the linux version I started on last year was an old redhet 6.0 version with only text mode.. back then for some reason I knew I how to get rid of whole directories without a) going through... (6 Replies)
Discussion started by: moxxx68
6 Replies

5. UNIX for Dummies Questions & Answers

Sorry! Stupid question, but...

Hey everybody. I'm going through my system (Mac OS X 10.3.9, through the Terminal application) trying to get rid of instances of MySQL that I installed over each other. I was having trouble getting MySQL to work: it wasn't letting me set the password, then it wouldn't let me create new databases... (2 Replies)
Discussion started by: starscream
2 Replies

6. UNIX for Dummies Questions & Answers

One stupid question

Has anybody come across the situation when after openning the cover of HP9000 the PC will not start. We checked everything but did not manage to find any solution to that. The PS seems to be functionning (at lease we can hear it clicking). Please help us solving the problem. Thanks to everybody. (2 Replies)
Discussion started by: Andrey Malishev
2 Replies

7. Shell Programming and Scripting

How to check if two variable are empty strings at once? (bash)

I need to check if $1 or $2 are empty before continuing but I don't know if bash has any logic of the sort. This is what I'm looking for - except that "and" doesn't seem to work. if and ;then ... Thank you! :D (4 Replies)
Discussion started by: ph0enix
4 Replies

8. Shell Programming and Scripting

How to check the variable is empty with spacing

How to check the variable is empty or not? aaa=" " how to check aaa variable is empty or just spacing? If only spacing inside.. it will asume it is empty. some are 6 spacing, or 8 spacing.. as long as variable is empty with spacing.. anyone can help me? (2 Replies)
Discussion started by: ryanW
2 Replies

9. Shell Programming and Scripting

How to check a variable for empty and a newline

I have a variable with a new line. I want to check this variable for empty or a new line Can anyone advise (4 Replies)
Discussion started by: Muthuraj K
4 Replies

10. Shell Programming and Scripting

How to check whether a variable is empty or contains some value?

hi, i want to check whether a a variable contains some value or is empty in a shell script. so if the variable contains some value i want to do some job and if the variable doesnt contain any value then i need to skip that job. here is a sample script read_filenames.sh contains ... (5 Replies)
Discussion started by: Little
5 Replies
TV_CHECK(1p)						User Contributed Perl Documentation					      TV_CHECK(1p)

NAME
tv_check - Check TV guide listings SYNOPSIS
tv_check --configure|--scan [other options] DESCRIPTIONS
tv_check is a Perl script that reads in a file with show information and checks it against a TV guide listing, reporting on upcoming episodes and alerting you to unexpected episodes or schedule changes. OPTIONS
--configure Run configuration GUI. Either this option or --scan must be provided. --season-reset special --configure option to remove everything but the title to help new season setup. The idea is to keep everything a "title-only" search until seasons begin. Then you update the details including record device. *expirimental* --scan Scan TV listings. Either this option or --configure must be provided. --myreplaytv=UNIT,USERNAME,PASSWORD ** Feature removed ** This option used to auto-populate a config file based on myreplaytv.com. --shows=FILE Specify the name of XML shows file (default: shows.xml). --guide=FILE, --listings=FILE Specify the name of XML guide file (default: guide.xml). --html Generate output in HTML format. --bluenew Highlights new episodes in blue (helpful back when there was an off-season) --output=FILE Write to FILE rather than standard output --help Provide a usage/help listing. SEE ALSO
xmltv(5). AUTHOR
Robert Eden; manpage by Kenneth J. Pronovici. perl v5.14.2 2011-06-13 TV_CHECK(1p)
All times are GMT -4. The time now is 07:08 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy