Sponsored Content
Full Discussion: Dynamic variable assignment
Top Forums Shell Programming and Scripting Dynamic variable assignment Post 302316395 by deepakgang on Friday 15th of May 2009 12:51:04 AM
Old 05-15-2009
Dynamic variable assignment

Hi All,

I have the below scenario:

A file test.cfg with three fields>>

DATA1 DATA2 DATA3

In the script I need to assign each of the fields to variables. The number of fields will not be constant (this case we have three). Im trying to do something like this:

NUM=1
OUT_DAT_NO=3

while [ $NUM -le $OUT_DAT_NO ]
do
OUT_DAT$NUM=`cat test.cfg | awk '{print $NUM}'`
NUM=`expr $NUM + 1`
done

The output should be like this:


OUT_DAT1=DATA1
OUT_DAT2=DATA2
OUT_DAT3=DATA3



Is there any way of doing this in bash?

Thanks,
D
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

@ in a variable assignment

Hello Everybody, Does anyone know what the @ symbol means in a csh script, if used with a variable assignment as below @ line = 1 why not just use.... set line=1 Many thanks rkap (1 Reply)
Discussion started by: rkap
1 Replies

2. Shell Programming and Scripting

variable assignment using awk

Guys, Could you please help me out. I need two values in two variables using awk from the o/p of grep. example:- grep sdosanjh <filename> sdosanjh myhostname myfilename NOW WHAT I WANT IS :- sdosanjh should be in variable (say NAME) myhostname should be in variable (say... (8 Replies)
Discussion started by: sdosanjh
8 Replies

3. Shell Programming and Scripting

eval and variable assignment

Hi, i have an issue with eval and variable assignment. 1) i have a date value in a variable and that date is part of a filename, var1=20100331 file1=${var1}-D1-0092.xml.zip file2=${var2}-D2-0092.xml.zip file3=${var3}-D3-0092.xml.zip i am passing the above variables to a script via... (11 Replies)
Discussion started by: mohanpadamata
11 Replies

4. Shell Programming and Scripting

Dynamic variable assignment

Hi all, I’m very new to UNIX programming. I have a question on dynamic variable 1. I’m having delimited file (only one row). First of all, I want to count number of columns based on delimiter. Then I want to create number of variables equal to number of fields. Say number of... (5 Replies)
Discussion started by: mkarthykeyan
5 Replies

5. Shell Programming and Scripting

Help with variable assignment

Hi, In AIX I have a variable with , (coma) separated values assigned to it like shown below var1=apple,boy,chris i want to convert this to var1='apple','boy','chris' the number of values assigned to var1 might change and it could be from 1 to n any suggestions please? (3 Replies)
Discussion started by: rahul9909
3 Replies

6. Shell Programming and Scripting

'eval' used in variable assignment

pattern1=book { x=1 eval echo \$pattern$x } book (this is the output) But when I assign a variable to the output of the eval it doesn't work unless I prefix 2 times backslash before $ as shown below. { a=`eval echo \\$pattern$x` echo $a } book Why here twice "\" has to be... (3 Replies)
Discussion started by: ravisingh
3 Replies

7. Shell Programming and Scripting

Dynamic variable assignment

My Code : -------------------------------------------- #!/bin/bash for i in `echo server1 server2` do eval ${i}_name = "apache" echo ${i}_name done -------------------------------------------- Current output : >./test.sh ./test.sh: line 5: server1_name: command not found... (3 Replies)
Discussion started by: sameermohite
3 Replies

8. Shell Programming and Scripting

Same Variable Assignment

Hi I have a strange problem: In my shell script I am performing a copy task: . prop.txt cp -r $dir/ $dir/archive $dir is fetched from a property file (prop.txt) which stores its value dir=/opt/data Now the problem is another dir1 comes into picture. I only want to add... (1 Reply)
Discussion started by: ankur328
1 Replies

9. Shell Programming and Scripting

Dynamic variable assignment

#!/bin/sh if then echo "Insufficient number of arguments ">> error".log" ; echo "Please check error log for more details"; exit 1 ; else file_name=$1".csv"; fi ; in_par_number=`head -n1 $file_name | sed 's///g' | wc -c` read -a arr <<< `head -n1 $file_name | sed 's// /g'` ... (6 Replies)
Discussion started by: JayDoshi
6 Replies

10. Shell Programming and Scripting

Variable Assignment

Hi I am facing a problem. export local_folder=/opt/app/ cd /opt/app/abc/ abcversion="abc*" (abcga5 is inside /opt/app/abc/) echo $abcversion (it echoes the correct version as abcga5 ) Now when I reuse the value of abcversion for a below path: export... (6 Replies)
Discussion started by: ankur328
6 Replies
RUNLIM(1)						      General Commands Manual							 RUNLIM(1)

NAME
runlim - a program to run benchmarks SYNOPSIS
runlim [ options ...] command [ arguments ...] DESCRIPTION
run is a tool that can be used to run and control benchmarks. It executes a given command with (optional) arguments, samples resource usage during the run, and kills the process (and its child processes) if a certain time and/or space limit is exhausted. Every 100 milliseconds, runlim takes a sample of the program's resource utilization, and logs status information to stderr every second. Optionally, the status can be logged to a file. Multi-threaded programs can be limited by setting a wall clock timeout. runlim follows the time accumulation scheme of GNU time for multi- threaded programs and programs that spawn multiple child-processes: time spent in each thread/child is summed up, unless you are only interested in walk clock time. OPTIONS
runlim accepts the following options: -h, --help Show summary of options. --version Show version of program. -o FILE, --output-file=FILE Overwrite or create FILE for output logging. -s NUM, --space-limit=NUM Set space limit to NUM megabytes. -t NUM, --time-limit=NUM Set time limit to NUM seconds. -r NUM, --real-time-limit=NUM Set real time limit to NUM seconds. -k, --kill Propagate signals. SEE ALSO
time(1), timelimit(1), timeout(1), time(7). AUTHOR
runlim was written by Armin Biere and Toni Jussila. This manual page was written by Thomas Krennwallner <tkren@kr.tuwien.ac.at>, for the Debian project (and may be used by others). February 11, 2011 RUNLIM(1)
All times are GMT -4. The time now is 09:41 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy