[SAC-HELP] calling sac commands within shell scripts

[Januka Attanayake]

Greetings,
I am trying to call sac within a shell script as follows.

while read line
do
    cd $line

        sac
        gawk '{print "macro ../sac_cut.macro"}'

    cd ../
done < folder_list.txt


folder_list.txt holds the names of all the directory names that the script
is suppose to look in.
I see that sac is initiated but the problem is in executing commands within
sac once it is initiated. I have tried several ways of doing that including
printf and piping to sac with back quotes. Still I get the following error.

SAC> readline: readline_callback_read_char() called with no handler!

How should one execute sac commands within a shell script?

I am using sac Version 101.3b

Thanks a lot.

Januka.
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