Storing variables in a shell script for reporting later

techie048 · #1 (**permalink**) 06-19-09, 17:23

I am writing a Unix Shell script to perform different system checks and balances based on criteria requirements from vendor. Things like checking for adequate diskspace, sufficient RAM, etc. I have at each stage of verification variables set so for RAM I have variable $MEM, CPU I have set as $PROC. My question is how to store these variables until the time is to report them out to a .csv file ?? (I understand Perl would handle this differently, but I do not know Perl language)

Any assistance would be helpful..
Thanks !!

mike_bike_kite · #2 (**permalink**) 06-20-09, 06:12

There are many ways but this is just one method. Save the variable values in a file as code so that the file can be included by any other shell and those variable values read. This program saves 2 variables to a file (tmp.dat).

Code:

#!/bin/sh

# init var
VAL_1=123
VAL_2=567

echo VAL_1=$VAL_1 > tmp.dat
echo VAL_2=$VAL_2 >> tmp.dat

exit

This will create a file tmp.dat that looks like this. Be aware you will need quotes if your values contain strings.

Code:

VAL_1=123
VAL_2=567

Any other program could then read those variable values by just including that file:

Code:

#!/bin/sh

. tmp.dat

echo $VAL_1
echo $VAL_2

exit

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