Provided by: util-linux-extra_2.41-4ubuntu3_amd64 

NAME
exch - atomically exchanges paths between two files
SYNOPSIS
exch oldpath newpath
DESCRIPTION
exch atomically exchanges oldpath and newpath. exch is a simple command wrapping RENAME_EXCHANGE of renameat2 system call.
OPTIONS
-h, --help Display help text and exit. -V, --version Display version and exit.
EXIT STATUS
exch has the following exit status values: 0 success 1 unspecified failure
AUTHORS
Masatake YAMATO <yamato@redhat.com>
SEE ALSO
renameat2(2)
REPORTING BUGS
For bug reports, use the issue tracker <https://github.com/util-linux/util-linux/issues>.
AVAILABILITY
The exch command is part of the util-linux package which can be downloaded from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils/util-linux/>. util-linux 2.41 2025-02-26 EXCH(1)