How do you process the output of a command in the shell line-by-line?

Question

I need to process the shared library dependencies of a library from a bash script. The for command processes word-by-word:

for DEPENDENCY in `otool -L MyApplication | sed 1d` do     ... done 

What is the way to process the results line-by-line?

Answer 1

You should use the read command.

otool -L MyApplication | sed 1d | \ while read i do   echo "line: " $i done 

See bashref for a description of the read builtin, and its options. You can also have a look at the following tutorial for examples of using read in conjunction with for.

Answer 2

otool -L MyApplication | sed 1d | while read line ; do   # do stuff with $line done