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-rw-r--r--doc/coreutils.texi2
1 files changed, 2 insertions, 0 deletions
diff --git a/doc/coreutils.texi b/doc/coreutils.texi
index 1a2dba43e..04c1b4e1e 100644
--- a/doc/coreutils.texi
+++ b/doc/coreutils.texi
@@ -7442,6 +7442,8 @@ Use non-blocking I/O.
@opindex noatime
@cindex access time
Do not update the file's access time.
+Some older file systems silently ignore this flag, so it is a good
+idea to test it on your files before relying on it.
@item noctty
@opindex noctty