Tyler Clemons

Tag: Linux

diff two commands

by on Jan.17, 2011, under Programming, scripting

Ran across this problem with a friend today. How does one diff the output of two commands without first dumping the output of the two commands to files? I found a solution that seems to work:

diff <(command1) <(command 2)

Suppose we wanted to diff the contents of two directories:

diff <(ls directory1) <(ls directory2)
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