using arguments in a config file

[Skywalker1957]

Have a quick question. I need to configure a file with arguments for my robotic libraries to run an inventory check command. How do I loop through the list and use my multiple arguments from each line.


Example config file robots.conf

# type num host
TLD 0 nbu001
TLD 1 nbu002
TLD 2 nbu003

I'm guessing this would need some kind of for loop with awk that could substitute the three fields above as arguments into my command line right?

Unfortuantely I don't know how to assign variables within awk, but it seems to me this ought to be easy enough to do on one line. Oreilly's hasn't been too helpful to me yet.

This is the command I'm trying to use to insert the arguments above into.

Example of tape_check.sh
#Run mismatch/checker command
vmcheckxxx -rt $type -rn $num -rh $host |mailx -s "Robot $num on $host tape check - `date`" email_address

Any help would be greatly appreciated! Thanks!

 

[LKBrwnDBA]

Try this:

grep -v '^#' robots.conf|\
while read type num host
do

  vmcheckxxx -rt $type -rn $num -rh $host |mailx -s "Robot $num on $host tape check - `date`" email_address
done

----------------------------------------------------------------------------
The person who says it can't be done should not interrupt the person doing it. -- Chinese proverb

 

[dkyrtata]

Try running this script. It does not use awk, but instead the Korn shell. The script assumes that each field will be separated by 1 or more spaces and that there are no embedded spaces within the fields.

I tested the script with the sample data file it creates. So just cut and paste it into a file and run it as is.


#!/bin/ksh

infile_name="args.dat"
(
echo "TLD 0 nbu001"
echo "TLD 1 nbu002"
echo "TLD 2 nbu003"
echo "TLD 3 nbu004"
echo "TLD 4 nbu005"
) > $infile_name # Create a sample input file for testing purposes

num_recs=$(wc -l < $infile_name) # Get the number of lines in input file
line_num=0

while [ "$line_num" -lt "$num_recs" ]; do
let line_num=$line_num+1
head -$line_num $infile_name | tail -1 | read type num host # Read current line in file and parse into $type $num $host
echo "type=$type num=$num host=$host"
done # while

 

[dkyrtata]

I like LKBrwnDBA's solution better. Go with that one.

 

[Skywalker1957]

Thanks VERY much! LKBrwnDBA's worked awesome!