How do you run a command for each line of a file?

Question

For example, right now I\'m using the following to change a couple of files whose Unix paths I wrote to a file:

cat file.txt | while read in; do chmod 755 \"         


        

Answer 1

If you want to run your command in parallel for each line you can use GNU Parallel

parallel -a  

Each line of your file will be passed to program as an argument. By default parallel runs as many threads as your CPUs count. But you can specify it with -j