On 5/14/15, Craig Skinner <skin...@britvault.co.uk> wrote:
[...]
> Here's a diff of a modified /etc/daily /tmp purge portion:
>
> o replace test(1) '-L' with '-h' due to:
> -L ... "Do not rely on its existence; use -h instead"
Interesting that FreeBSD[1] and MacOS X say the opposite.
SUSv4 (one I have handy) has the exact same text for both
options:
True if pathname resolves to an existing
directory entry for a symbolic link. False if
pathname cannot be resolved, or if pathname
resolves to an existing directory entry for a
file that is not a symbolic link. If the final
component of pathname is a symbolic link, that
symbolic link is not followed
--patrick
[1]
https://www.freebsd.org/cgi/man.cgi?query=test&apropos=0&sektion=0&manpath=FreeBSD+10.1-RELEASE&arch=default&format=html
> o don't cd nor find(1) execdir, rather full path find.
> o file find stage;-
> o read found & skip directories for rm(1),
> check found item isn't open with fstat.
> o securely random pattern overwrite stale files.
> o directory find stage;-
> o find only empty directories for rmdir(1).
> o 5 day stale directories.
> o similarily order ignores of .X11-unix, .ICE-unix & portslocks.
> o also purge stale;-
> o pipes.
> o sockets.
> o dangling symlinks.
>
>
>
> Index: daily
> ===================================================================
> RCS file: /cvs/src/etc/daily,v
> retrieving revision 1.83
> diff -u -p -r1.83 daily
> --- daily 29 Apr 2015 00:10:44 -0000 1.83
> +++ daily 14 May 2015 15:53:00 -0000
> @@ -45,16 +45,32 @@ start_part "Running daily.local:"
> run_script "daily.local"
>
> next_part "Removing scratch and junk files:"
> -if [ -d /tmp -a ! -L /tmp ]; then
> - cd /tmp && {
> - find -x . \
> - \( -path './ssh-*' -o -path ./.X11-unix -o -path ./.ICE-unix \
> - -o -path ./portslocks -o -path './tmux-*' \) \
> - -prune -o -type f -atime +7 -execdir rm -f -- {} \; 2>/dev/null
> - find -x . -type d -mtime +1 ! -path ./vi.recover ! -path ./.X11-unix \
> - ! -path ./.ICE-unix ! -path ./portslocks ! -name . \
> - -execdir rmdir -- {} \; >/dev/null 2>&1; }
> -fi
> +[[ -d /tmp && ! -h /tmp ]] &&
> +{
> + # stale files, not still held open:
> + find -x /tmp \( -path '/tmp/ssh-*' -o -path '/tmp/tmux-*' \
> + -o -path /tmp/.X11-unix -o -path /tmp/.ICE-unix \
> + -o -path /tmp/portslocks \) -prune \
> + -o -type f -atime +7 | while read found
> + do
> + [[ -d ${found} ]] && continue
> + fstat ${found} | grep -q ${found}$ || rm -P -- ${found}
> + done
> +
> + # stale dangling symlinks:
> + find -Lx /tmp -type l -ctime +14 \
> + -exec rm -- {} \;
> +
> + # stale pipes & sockets:
> + find -x /tmp \( -type p -o -type s \) -ctime +40 \
> + -exec rm -- {} \;
> +
> + # stale directories:
> + find -x /tmp -type d -mtime +5 -empty \
> + ! -name /tmp ! -path /tmp/vi.recover \
> + ! -path /tmp/.X11-unix ! -path /tmp/.ICE-unix \
> + ! -path /tmp/portslocks -exec rmdir -- {} \;
> +}
>
> # Additional junk directory cleanup would go like this:
> #if [ -d /scratch -a ! -L /scratch ]; then
>
>
> Would it be a good idea to move the /scratch example out of the
> /etc/daily script, and into daily(8), as an example for daily.local?
>
>
