how to check null variable Post: 302149588

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1. Shell Programming and Scripting

check for NULL variable

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

2. Shell Programming and Scripting

check for not null string in file

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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How to check for null or empty string

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...

5. UNIX for Dummies Questions & Answers

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,...

7. Shell Programming and Scripting

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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Check null value in xml

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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If condition to check null variable

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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Check null values column

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...

LEARN ABOUT FREEBSD

uusched

uusched(1M)						  System Administration Commands					       uusched(1M)

NAME

       uusched - uucp file transport program scheduler

SYNOPSIS

       /usr/lib/uucp/uusched [-u debug-level] [-x debug-level]

DESCRIPTION

       uusched	is  the   uucp(1C) file transport scheduler. It is usually started by the daemon uudemon.hour that is started by  cron(1M) from an
       entry in user uucp's crontab file:

	      11,41 * * * * /etc/uucp/uucp/uudemon.hour

OPTIONS

       The options are for debugging purposes only. debug-level is a number between  0 and  9. Higher numbers give more detailed debugging  infor-
       mation:

       The following options are supported:

       -u debug-level  Passes the -u debug-level option  uucico(1M) as -x debug-level.

       -x debug-level  Outputs debugging messages from	uusched.

FILES

       /etc/uucp/Devices

       /etc/uucp/Permissions

       /etc/uucp/Systems

       /var/spool/locks/*

       /var/spool/uucp/*

       /var/spool/uucppublic/*

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWbnuu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       uucp(1C), uustat(1C), uux(1C), cron(1M), uucico(1M), attributes(5)

SunOS 5.10							    19 May 1993 						       uusched(1M)

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