UNIX for Dummies Questions & Answers

Hi,

I have a script which loops through a file and based on the fields in the file does certain things. I'm just testing the final version and come up against a problem.

One of the things is to copy files, so the line in the release.file would look like this.

COPY my_file $COPY_DIR 777

where COPY_DIR is an environment variable pointing at a directory on the server. It has to be this way because the script will be run on several machines, where $COPY_DIR is different.

At the moment the script looks as follows

cat release.file |grep -v ^# |
while read line; do
type=`echo $line | cut -d" " -f1`
case $type in
.....
.....
COPY) echo "Running COPY for `echo $line | awk '{print $2}' -`";
echo "Copying to `echo $line | awk '{print $3}' -`";
echo "Setting chmod to `echo $line | awk '{print $4}' -`";
ls -al `echo $line | awk '{print $3 "/" $2}' -`;
cp `echo $line | awk '{print $2 " " "$3"}' -`;
chmod `echo $line | awk '{print $4 " " $3 "/" $2}' -`;
ls -al `echo $line | awk '{print $3"/"$2}' -`;
;;
.....
.....
esac
done

This just doesn't work. I've looked at ENVIRON but not sure this would work, so I'm at a loss to work this out. Any help much appreciated.

Mike

As always you post these things and then find the answer. My Problem was I was using awk, not nawk. Also in the file, you can't have the $, so it would be

COPY my_file COPY_DIR tmp 777

in the file and the script copy bit would be

COPY) echo "Running COPY for `echo $line | awk '{print $2}' -`";
echo "Copying to `echo $line | awk '{print $3 "/" $4}' -`";
echo "Copying to `echo $line | nawk '{print ENVIRON[$3] "/" $4}' -`";
echo "Setting chmod to `echo $line | awk '{print $5}' -`";
echo "File before copy";
ls -al `echo $line | nawk '{print ENVIRON[$3] "/" $4 "/" $2}' -`;
cp `echo $line | nawk '{print $2 " " ENVIRON[$3] "/" $4}' -`;
chmod `echo $line | nawk '{print $5 " " ENVIRON[$3] "/" $4 "/" $2}' -`;
echo "File after copy";
ls -al `echo $line | nawk '{print ENVIRON[$3] "/" $4 "/" $2}' -`;
;;