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| author | Pádraig Brady <P@draigBrady.com> | 2013-04-03 18:33:43 +0100 |
|---|---|---|
| committer | Pádraig Brady <P@draigBrady.com> | 2013-04-04 02:46:52 +0100 |
| commit | 34023817cb0225b50779a546a58e057e5e920d2c (patch) | |
| tree | 485a69eb66ae56f1d61c8eae93270c5ea51be7b5 /doc | |
| parent | e52293aa7fcf283758f97bc9bcc945707ccbce0a (diff) | |
| download | coreutils-34023817cb0225b50779a546a58e057e5e920d2c.tar.xz | |
doc: add details on ln --relative symlink resolution
* doc/coreutils.texi (ln invocation): Describe how symlinks are
resolved with --relative, and give an example showing the greater
control available through realpath(1).
* tests/ln/relative.sh: Add a test to demonstrate full symlink
resolution, in a case where it might not be wanted.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/coreutils.texi | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/doc/coreutils.texi b/doc/coreutils.texi index dfa9b1c21..4cfe4c50c 100644 --- a/doc/coreutils.texi +++ b/doc/coreutils.texi @@ -9798,8 +9798,24 @@ ln -srv /a/file /tmp '/tmp/file' -> '../a/file' @end smallexample +Relative symbolic links are generated based on their canonicalized +containing directory, and canonicalized targets. I.E. all symbolic +links in these file names will be resolved. @xref{realpath invocation}, which gives greater control -over relative file name generation. +over relative file name generation, as demonstrated in the following example: + +@example +@verbatim +ln--relative() { + test "$1" = --no-symlinks && { nosym=$1; shift; } + target="$1"; + test -d "$2" && link="$2/." || link="$2" + rtarget="$(realpath $nosym -m "$target" \ + --relative-to "$(dirname "$link")")" + ln -s -v "$rtarget" "$link" +} +@end verbatim +@end example @item -s @itemx --symbolic |