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sed -i 's/\(var1=\).*/\11/' var

-i To update the file in-place
s - To find and replace (eg: s/find/replace/)
var1= - Finds the line containing the pattern var1= and it is grouped using...

The sed command provided updates your "var" file with the value 1. This command does not give any output. You will see the changes next time when you source your file.

Guru.

What did you try to achieve with this line?
user=$user
I'd bet $user is not set. You probably want to do any of these equivalent ways to get the current user:
chown -R $USER extracted
chown -R...

Welcome to the Unix.com forum.:)

Try something like this...


read name_of_tar
echo $name_of_tar #To Use that variable use $ ahead of it..

#Assuming you have urls only.

echo...

After using read name_of_tar to get the name of the tar file you want to create. You use it by changing
tar -H ustar -c file1 file2 > name.tar
to:
tar -H ustar -c file1 file2 > "$name_of_tar"...