coreutils: Realpath usage examples
18.5.1 Realpath usage examples
------------------------------
By default, ‘realpath’ prints the absolute file name of given files
(symlinks are resolved, ‘words’ is resolved to ‘american-english’):
cd /home/user
realpath /usr/bin/sort /tmp/foo /usr/share/dict/words 1.txt
⇒ /usr/bin/sort
⇒ /tmp/foo
⇒ /usr/share/dict/american-english
⇒ /home/user/1.txt
With ‘--relative-to’, file names are printed relative to the given
directory:
realpath --relative-to=/usr/bin \
/usr/bin/sort /tmp/foo /usr/share/dict/words 1.txt
⇒ sort
⇒ ../../tmp/foo
⇒ ../share/dict/american-english
⇒ ../../home/user/1.txt
With ‘--relative-base’, relative file names are printed _if_ the
resolved file name is below the given base directory. For files outside
the base directory absolute file names are printed:
realpath --relative-base=/usr \
/usr/bin/sort /tmp/foo /usr/share/dict/words 1.txt
⇒ bin/sort
⇒ /tmp/foo
⇒ share/dict/american-english
⇒ /home/user/1.txt
When both ‘--relative-to=DIR1’ and ‘--relative-base=DIR2’ are used,
file names are printed relative to DIR1 _if_ they are located below
DIR2. If the files are not below DIR2, they are printed as absolute
file names:
realpath --relative-to=/usr/bin --relative-base=/usr \
/usr/bin/sort /tmp/foo /usr/share/dict/words 1.txt
⇒ sort
⇒ /tmp/foo
⇒ ../share/dict/american-english
⇒ /home/user/1.txt
When both ‘--relative-to=DIR1’ and ‘--relative-base=DIR2’ are used,
DIR1 _must_ be a subdirectory of DIR2. Otherwise, ‘realpath’ prints
absolutes file names.
Info Catalog
coreutils: realpath invocation