how to check null variable Post: 302149574

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check for NULL variable

Hello I want to check for NULL variable.. but this is not working..please help thanks in advance esham

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Hi, If, in a text file a string is expected at a certain fixed position(for eg at position 5 or from 5-10 on every line) how to check whether data is present on that position or not? Thnx in advance

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Hi, I need to check for value not equal (<>) to 21 and not equal empty or null values. Please modify this script if then echo "$VALUE,$BSC_NAME,$BSC_ID" > $OUT_FILE/power_up.out end if TQ

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How to check for null value from makefile

My makefile has some code as follows: if ; then \ echo copying tools; \ cp -f `../${TOOLS_ROOT_PATH}/ext_tools.sh 1` ${EXTERNAL_BIN_DIR} || exit $$?;\ fi; \ The ext_tools.sh is as follows: cat ttx.conf | grep external | grep -v ^# | awk '{print $1}' It can sometime result...

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Check for null values in a column

Hi All, I have a file with 10 columns and get the required data for nine columns properly except 8th. In 8th column i have both NULL and NON NULL values...i.e certain records have values for all the columns including 8th column and certain records have 8th column as NULL.My requisite is,without...

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check for null

hi, i have 3 lines of output , if second line exists then only condition within the if loop has to exeute other wise it has exit from loop. i had tried like this but not getting please help me ... Code: if ; then echo "success" else echo "" Use code tags please,...

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Check for null

Hi Champs!!! im a newbie in unix, need ur expert help for my problem... I need to search if there are any "NULL" entries in the string String without Null Str1: 203652|1000003653|tellt|RUPV|4649|1|07/28/2011 01:56:12 String with Null (RUPV is removed) Str2:...

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Hi, I have a log file which is having some xml tags. I need to check the value for a particular xml field is null or not and if it is null i have to add current time as the value for that xml field. I tried below code to check whether the word count is 0. But even if the xml field is null it...

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Guys, Please help me on the below sample.cfg var=NULL sample.sh #!/bin/sh . /sample.cfg if ;then 1 st command here else 2 nd command here fi

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hi, I had a small question.I had a file from which i need to extract data. I have written the below script to check if the file exists and if it exists extract requierd columns from the file. IFILE=/home/home01/Report_1.csv OFILE=/home/home01/name.csv.out1 if #Checks if file exists...

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wnpp-check

WNPP-CHECK(1)						      General Commands Manual						     WNPP-CHECK(1)

NAME

       wnpp-check - check if a package is being packaged or if this has been requested

SYNOPSIS

       wnpp-check package ...
       wnpp-check --help|--version

DESCRIPTION

       wnpp-check  downloads  the  lists  of packages which are listed as being packaged (ITPed) or for which a package has been requested (RFPed)
       from the WNPP website and lists any packages supplied on the command line which appear in those lists.

       Note that WNPP, and therefore wnpp-check's output, is source package based.

OPTIONS

       --help, -h
	      Show a summary of options.

       --version, -v
	      Show version and copyright information.

SEE ALSO

       http://www.debian.org/devel/wnpp

EXIT STATUS

       0      None of the packages supplied has an open ITP or RFP

       1      Either an error occurred or at least one package supplied has an open ITP or RFP

AUTHOR

       wnpp-check was written by David Paleino <d.paleino@gmail.com>; this man page was written by Adam D. Barratt <adam@adam-barratt.org.uk>  for
       the  devscripts	package.  wnpp-check was originally based on wnpp-alert, which was written by Arthur Korn <arthur@korn.ch> and modified by
       Julian Gilbey <jdg@debian.org> for the devscripts package.  Both scripts are in the public domain.

DEBIAN
								 Debian Utilities						     WNPP-CHECK(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

check for NULL variable

Discussion started by: esham

2. Shell Programming and Scripting

check for not null string in file

Discussion started by: misenkiser

3. Shell Programming and Scripting

How to check for null or empty string

Discussion started by: doer

4. Shell Programming and Scripting

How to check for null value from makefile

Discussion started by: jake_ryan