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Build # 11439326193

Build Type

push

github

Committed by web-flow

Commit Message

cmp: helpful EOF messages

* It's trivial to provide extra descriptive output when files differ at EOF, as done by GNU cmp
* Shell scripts running cmp would normally use the -s flag and check the exit code, i.e. the text description shouldn't be depended upon for portability

%dd if=/dev/urandom bs=512 count=1 of=rnd
%cp rnd rnd2
%echo >> rnd2
%touch empty
%perl cmp rnd rnd2 # test1: non-empty files, eof on arg1
cmp: EOF on rnd after byte 512, in line 6
%perl cmp rnd2 rnd # test2: non-empty files, eof on arg2
cmp: EOF on rnd after byte 512, in line 6
%perl cmp empty rnd # test3: arg1 empty
cmp: EOF on empty which is empty
%perl cmp rnd empty # test4: arg2 empty
cmp: EOF on empty which is empty

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