Very Computer

1. variable replacement problem

Hi,

I am new to shell script. I spent this morning in writing a small code
to analyze some data in the batch mode. However, it could not be
executed correctly. I am posting the code here and would like to hear
your suggestions.

#!/bin/sh
for filename in *.txt
do
out=`echo "$filename" | sed 's/txt/out/'`
./Gaussian < input > $out
temp="01.txt"
sed -e "s/$filename/$temp/g" < input > output
mv output input
temp="$filename"
done

I have a number of ".txt" files which are named 00.txt, 01.txt... The
"input" in the code is a file which defines some parameters. In each
loop, the .txt file in the input file needs to be updated. This is what
I tried to do with
"sed -e "s/$filename/$temp/g" < input > output". However, after
"00.txt" being changed to "01.txt" in "input", it is not updated
anymore. "01.txt" stays in the input file.

Could anybody please let me know where is wrong? Thanks a lot!
Regards,
Doug

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