On 03/17/2016 05:37 AM, a...@korath.teln.shikadi.net wrote: > Configuration Information [Automatically generated, do not change]: > Machine: x86_64 > OS: linux-gnu > Compiler: gcc > Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='x86_64' > -DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='x86_64-unknown-linux-gnu' > -DCONF_VENDOR='unknown' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' > -DSHELL -DHAVE_CONFIG_H -I. -I. -I./include -I./lib -D_FORTIFY_SOURCE=2 > -march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong > -DDEFAULT_PATH_VALUE='/usr/local/sbin:/usr/local/bin:/usr/bin' > -DSTANDARD_UTILS_PATH='/usr/bin' -DSYS_BASHRC='/etc/bash.bashrc' > -DSYS_BASH_LOGOUT='/etc/bash.bash_logout' > uname output: Linux korath.teln.shikadi.net 4.5.0-1-drm-intel-nightly #1 SMP > PREEMPT Sun Mar 13 10:42:04 AEST 2016 x86_64 GNU/Linux > Machine Type: x86_64-unknown-linux-gnu > > Bash Version: 4.3 > Patch Level: 42 > Release Status: release > > Description: > Moving a directory to a non-existent path will rename the directory > instead > of reporting that the destination directory does not exist.
This has nothing to do with bash, and would belong better on the bug-coreutils mailing list, if it were a bug. However,... > > Repeat-By: > rmdir two 2> /dev/null > mkdir one > mv one two/ POSIX requires this to succeed, and renames 'one/' to 'two/'. > > This should (and did in earlier versions) return an error, since the > "two" > directory does not exist, so the "one" folder cannot be moved inside of > it. You are NOT moving 'one' to 'two/one', but renaming 'one' to 'two'. That is what POSIX requires, so no error is needed. http://pubs.opengroup.org/onlinepubs/9699919799/utilities/mv.html "This first synopsis form is assumed when the final operand does not name an existing directory and is not a symbolic link referring to an existing directory." That sums up your situation ('two/' does not exist, so you are doing 'mv source target_file', not 'mv source target_dir'), at which point steps 1 and 2 do not apply, and step 3 states you are doing rename("one","two/"), which succeeds because "one" is a directory (if "one" were not a directory, it would fail). -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
signature.asc
Description: OpenPGP digital signature
