Thread: [Scripting] How to remove content of one file from another

morning everyone!

i've been puzzling on while , have not been able reach solution, turning selves advice! have 2 files, let's this:

*file a*

code:

item1 item3 item5

*file b*

code:

item1 item2 item3 item4 item5

is there clever way "subtract" content of file file b, left in file b not contained in (in case item2 , item4)?

help/suggestions appreciated!

try like:

code:

awk -f'\n' 'nr==fnr{_[$1];next}!($1 in _)' "file a" "file b"

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