Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

ksh script

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting ksh script
# 1  
Old 07-14-2009
ksh script
I have a script like this ..

Code:
#!/usr/bin/ksh

if [ -z "${OUT_LOG_FILE_NAME}" ]
then  
  OUT_LOG_FILE_NAME=0
fi

LOGFILE="sample.log"

if [ ${OUT_LOG_FILE_NAME} -ne 0 ] 
then
	echo ${LOGFILE}
fi

what I am trying to do is if OUT_LOG_FILE_NAME is passed then it should return value of logfile name . It's returning value in all cases . what I am doing wrong here ?
Last edited by vgersh99; 07-14-2009 at 02:03 PM.. Reason: code tags, PLEASE!
# 2  
Old 07-14-2009
To keep the forums high quality for all users, please take the time to format your posts correctly.

First of all, use Code Tags when you post any code or data samples so others can easily read your code. You can easily do this by highlighting your code and then clicking on the # in the editing menu. (You can also type code tags [code] and [/code] by hand.)

Second, avoid adding color or different fonts and font size to your posts. Selective use of color to highlight a single word or phrase can be useful at times, but using color, in general, makes the forums harder to read, especially bright colors like red.

Third, be careful when you cut-and-paste, edit any odd characters and make sure all links are working property.

Thank You.

The UNIX and Linux Forums
# 3  
Old 07-14-2009
By "if OUT_LOG_FILE_NAME is passed" do you mean passed as an argument on the command line?
# 4  
Old 07-14-2009
Beware if OUT_LOG_FILE_NAME is set to a non-numeric value the "if -ne" will fail. Not clear whether you are using this variable as a boolean.
# 5  
Old 07-14-2009
hello,
I assume you are passing in a filename to the script, and if nothing is passed in you want to use the default filename of "sample.log".

Try this 2-liner:

LOGFILE=${1:-"sample.log"}
echo ${LOGFILE}

#This means if nothing was passed, use the default "sample.log".
# 6  
Old 07-14-2009
what I am trying to do is ..

$ ./1.sh OUT_LOG_FILE_NAME=0
0

./1.sh OUT_LOG_FILE_NAME=1
0


if I execute the script 1.sh with out OUT_LOG_FILE_NAME parameter , it should not return log file name from the program .

If I pass OUT_LOG_FILE_NAME , it should return log file name from 1.sh program .

Thanks
# 7  
Old 07-15-2009
example, testing argument 1
Code:
case "$1" in
     OUT_LOG_FILE_NAME=0) ;;
     OUT_LOG_FILE_NAME=1) echo "$LOGFILE" ;;
     *) ;;
esac

commandline
1.sh OUT_LOG_FILE_NAME=0
means that argument 1 value is "OUT_LOG_FILE_NAME=0", commandline not set value for variable.

If you like to use variable, then first set variable and then call script. Variable must be global, if you like to use it in childprocess. Using export you make global variable.
export OUT_LOG_FILE_NAME
OUT_LOG_FILE_NAME=0
./1.sh


If you like to give command line like *nix system has done in history, then something like
./1.sh -o 1
or
./1.sh --outlog 1
are "standard" methods.

How to do it ?
You can use command getopt, but here is example how to take full control of options and arguments:

Code:
# init flags/variables/...
flag1=0
# handle command line options and arguments
while [ $# -gt 0 ] 
do 
    arg="$1" 
    case "$arg" in 
          -o|--outlog) flag1="$2"
               shift ;; 
          --) # no more option
               shift
               break
               ;;
          -*) echo "usage..." >&2 
                exit 1 
                ;; 
          *) break ;; # no options anymore, this is already argument
    esac 
    shift 
done 

[ "$flag1" = "1" ] && echo "flag1 is 1"

# now you can handle all arguments
for arg in $*
do
    cmd "$arg"
done

Last edited by kshji; 07-15-2009 at 04:39 AM..
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Script to replace lines in ksh Script

Hi All, I am novice to Unix and I need your expert advice for the below task. There is a KSH script file in which I need to replace few line as per the below expectations. So my file look like as # Host Setup Command: Line 1 Line 2 Line 3 Line 4 Line Any... (6 Replies)
Discussion started by: rupid0609
6 Replies

2. Shell Programming and Scripting

Deploy ksh script to file from other script

Hi all, I need to deploy two scripts on around ~100 machines and have only OPSware. Opsware have the option to execute a script, so I am trying to write a script which dose cat > script.ksh <<EOF script to be deployed EOF However the script between the two EOFs gets also executed which... (0 Replies)
Discussion started by: click
0 Replies

3. Shell Programming and Scripting

Help Create dynamic ksh script from a script

I am currently running 2 scripts to gather data for a 3rd script and would like to combine the 2 scripts into one. Having issues with the final output format. Note cannot post URL so replaced the http stuff with (name) in the examples All scripts contain #!/bin/ksh OS = Red Hat Enterprise... (0 Replies)
Discussion started by: pcpinkerton
0 Replies

4. Shell Programming and Scripting

KSH script to run other ksh scripts and output it to a file and/or email

Hi I am new to this Scripting process and would like to know How can i write a ksh script that will call other ksh scripts and write the output to a file and/or email. For example ------- Script ABC ------- a.ksh b.ksh c.ksh I need to call all three scripts execute them and... (2 Replies)
Discussion started by: pacifican
2 Replies

5. Shell Programming and Scripting

passing a variables value from the called script to calling script using ksh

How do i get the value of the variable from the called script(script2) to the calling script(script1) in ksh ? I've given portion of the script here to explain the problem. Portion of Script 1 ============= ----- ----- tmp=`a.ksh p1 p2 p3` if then # error processing fi -----... (10 Replies)
Discussion started by: rajarkumar
10 Replies

6. Shell Programming and Scripting

import var and function from ksh script to another ksh script

Ih all, i have multiples ksh scripts for crontab's unix jobs they all have same variables declarations and some similar functions i would have a only single script file to declare my variables, like: var1= "aaa" var2= "bbb" var3= "ccc" ... function ab { ...} function bc { ... }... (2 Replies)
Discussion started by: wolfhurt
2 Replies

7. Shell Programming and Scripting

tracing a ksh script within a ksh script

I normally trace a script with the ksh -x <script name> and redirect strderr to file. But if you have a script like the examble below...... vi hairy bear=`grep bear animals` if then ksh more_animals fi If I ksh -x hairy it won't trace "more_animals" unless I put a -x in it. Is... (1 Reply)
Discussion started by: shorty
1 Replies

8. Shell Programming and Scripting

how to convert unix .ksh script to windows .batch script

I am using awk in my .ksh script but when I am trying to run in windows its not recognising awk part of the ksh script , even when I changed it to gawk it does not work, this is how my .ksh and .bat files look like. thanx. #!/bin/ksh egrep -v "Rpt 038|PM$|Parameters:|Begin |Date: |End... (1 Reply)
Discussion started by: 2.5lt V8
1 Replies

9. Shell Programming and Scripting

executing a ksh script from another ksh script

Hi, I'm new to unix scripting.How can i call a script from another script. I have a.ksh and b.ksh .I have to call b.ksh from a.ksh after it is successfully exceuted. I tried using #!/bin/ksh -x in a.ksh and at the end i have used /path/b.ksh My problem is it is executing only a.ksh.it... (6 Replies)
Discussion started by: ammu
6 Replies

10. UNIX for Dummies Questions & Answers

SQL Script run in KSH Script

I've got a SQL script that is executed through a UNIX ksh script. It is working fine, but I wanted to add a line to put a date/time stamp in the log file that it generates. This is more of a SQL question, but I'm hoping someone can help me get the date/time...I've changed the script with the... (2 Replies)
Discussion started by: dstinsman
2 Replies
Login or Register to Ask a Question