enh wrote in
<CAJgzZoq6wb=ujhuo+4h_ntoddojb1xhv5b5batajunyhkn_...@mail.gmail.com>:
|in terms of "what's actually used in the wild", Android uses toybox (0BSD
|licensed, so anyone can look :-) ) for both on-device *and* for the OS
|build itself on the host.
|
|toybox readlink (
|https://github.com/landley/toybox/blob/master/toys/other/readlink.c)
|currently supports:
|
| usage: readlink FILE...
|
| With no options, show what symlink points to, return error if not
|symlink.
|
| Options for producing canonical paths (all symlinks/./.. resolved):
| -e Canonical path to existing entry (fail if missing)
| -f Full path (fail if directory missing)
| -m Ignore missing entries, show where it would be
| -n No trailing newline
| -q Quiet (no output, just error code)
|
|since toybox tends to add things _as they're needed_, rather than "because
|coreutils has them", that's probably "solid anecdata" about what gets used
|in the wild.
|
|one thing i haven't seen mentioned so far (but which i added to toybox
|myself, so i know it's definitely in use) is that existing realpath
|implementations support *multiple* file arguments on the command line, not
|just one.
To extend this with the widely used busybox:
#?127|kent:toolbox.git$ busybox.static readlink --help
BusyBox v1.34.0 (2022-01-03 21:34:20 CET) multi-call binary.
Usage: readlink [-fnv] FILE
Display the value of a symlink
-f Canonicalize by following all symlinks
-n Don't add newline
-v Verbose
#?0|kent:toolbox.git$ busybox.static realpath --help
BusyBox v1.34.0 (2022-01-03 21:34:20 CET) multi-call binary.
Usage: realpath FILE...
Print absolute pathnames of FILEs
--steffen
|
|Der Kragenbaer, The moon bear,
|der holt sich munter he cheerfully and one by one
|einen nach dem anderen runter wa.ks himself off
|(By Robert Gernhardt)
