Commits on Oct 21, 2024

1. 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

   

   mknos authored Oct 21, 2024
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