uutils/findutils
-printf: unrecognized %X / \X directives should warn and print literally, not be dropped or error
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#815 opened on 2026/08/07
good first issue
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説明
GNU findutils treats an unrecognized -printf directive as a warning and prints the directive text verbatim, exiting 0. uutils/findutils diverges in two ways.
%X - the % is silently dropped
$ # GNU findutils 4.10.0
$ find d -printf '%€|\n'
find: warning: unrecognized format directive '%€'
%€|
$ echo $?
0
$ # uutils
$ find d -printf '%€|\n'
€|
$ echo $?
0
The % disappears. Same for the ASCII case, e.g. %q.
\X - uutils errors instead of warning
$ # GNU: warns, prints `\€`, exit 0
$ # uutils: hard error, exit 1