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#1
LQ 5k Club
Registered: Oct 2003
Location: Melbourne
Distribution: Slackware-current
Posts: 5,633
How would you extract older entries from this listing?
I am working on a script to clean stale files from a local repository.
Given a listing like:
Code:
/var/cache/packages20170115/slackware/ap/zsh-5.3.1-i586-1.txz zsh 20170115
/var/cache/packages20170327/slackware/l/zlib-1.2.11-i586-1.txz zlib 20170327
/var/cache/packages20170115/slackware/l/zlib-1.2.10-i586-1.txz zlib 20170115
/var/cache/packages20170211/slackware/n/zd1211-firmware-1.5-fw-1.txz zd1211-firmware 20170211
/var/cache/packages20170115/slackware/n/ytalk-3.3.0-i586-3.txz ytalk 20170115
/var/cache/packages20170722/slackware/n/yptools-2.14-i586-8.txz yptools 20170722
/var/cache/packages20170115/slackware/a/xz-5.2.3-i586-1.txz xz 20170115
/var/cache/packages20170412/slackware/xap/xv-3.10a-i586-8.txz xv 20170412
/var/cache/packages20170715/slackware/x/xterm-330-i586-1.txz xterm 20170715
/var/cache/packages20170613/slackware/x/xterm-328-i586-1.txz xterm 20170613
/var/cache/packages20170115/slackware/x/xterm-327-i586-1.txz xterm 20170115
/var/cache/packages20161120/slackware/x/xterm-326-i586-1.txz xterm 20161120
/var/cache/packages20170709/slackware/xap/xscreensaver-5.37-i586-1.txz xscreensaver 20170709
/var/cache/packages20161102/slackware/xap/xscreensaver-5.36-i586-1.txz xscreensaver 20161102
/var/cache/packages20161120/slackware/x/xproto-7.0.31-noarch-1.txz xproto 20161120
/var/cache/packages20170818/slackware/x/xorg-server-xvfb-1.19.3-i586-2.txz xorg-server-xvfb 20170818
/var/cache/packages20170320/slackware/x/xorg-server-xvfb-1.19.3-i586-1.txz xorg-server-xvfb 20170320
/var/cache/packages20170311/slackware/x/xorg-server-xvfb-1.19.2-i586-1.txz xorg-server-xvfb 20170311
/var/cache/packages20170123/slackware/x/xorg-server-xvfb-1.19.1-i586-2.txz xorg-server-xvfb 20170123
/var/cache/packages20170115/slackware/x/xorg-server-xvfb-1.19.1-i586-1.txz xorg-server-xvfb 20170115
/var/cache/packages20161120/slackware/x/xorg-server-xvfb-1.19.0-i586-1.txz xorg-server-xvfb 20161120
/var/cache/packages20160724/slackware/x/xorg-server-xvfb-1.18.4-i586-1.txz xorg-server-xvfb 20160724
/var/cache/packages20170818/slackware/x/xorg-server-xnest-1.19.3-i586-2.txz xorg-server-xnest 20170818
/var/cache/packages20170320/slackware/x/xorg-server-xnest-1.19.3-i586-1.txz xorg-server-xnest 20170320
/var/cache/packages20170311/slackware/x/xorg-server-xnest-1.19.2-i586-1.txz xorg-server-xnest 20170311
/var/cache/packages20170123/slackware/x/xorg-server-xnest-1.19.1-i586-2.txz xorg-server-xnest 20170123
/var/cache/packages20170115/slackware/x/xorg-server-xnest-1.19.1-i586-1.txz xorg-server-xnest 20170115
/var/cache/packages20161120/slackware/x/xorg-server-xnest-1.19.0-i586-1.txz xorg-server-xnest 20161120
/var/cache/packages20160724/slackware/x/xorg-server-xnest-1.18.4-i586-1.txz xorg-server-xnest 20160724
/var/cache/packages20170818/slackware/x/xorg-server-xephyr-1.19.3-i586-2.txz xorg-server-xephyr 20170818
/var/cache/packages20170320/slackware/x/xorg-server-xephyr-1.19.3-i586-1.txz xorg-server-xephyr 20170320
/var/cache/packages20170311/slackware/x/xorg-server-xephyr-1.19.2-i586-1.txz xorg-server-xephyr 20170311
/var/cache/packages20170123/slackware/x/xorg-server-xephyr-1.19.1-i586-2.txz xorg-server-xephyr 20170123
/var/cache/packages20170115/slackware/x/xorg-server-xephyr-1.19.1-i586-1.txz xorg-server-xephyr 20170115
/var/cache/packages20161120/slackware/x/xorg-server-xephyr-1.19.0-i586-1.txz xorg-server-xephyr 20161120
/var/cache/packages20160724/slackware/x/xorg-server-xephyr-1.18.4-i586-1.txz xorg-server-xephyr 20160724
/var/cache/packages20170818/slackware/x/xorg-server-1.19.3-i586-2.txz xorg-server 20170818
/var/cache/packages20170320/slackware/x/xorg-server-1.19.3-i586-1.txz xorg-server 20170320
/var/cache/packages20170311/slackware/x/xorg-server-1.19.2-i586-1.txz xorg-server 20170311
/var/cache/packages20170123/slackware/x/xorg-server-1.19.1-i586-2.txz xorg-server 20170123
/var/cache/packages20170115/slackware/x/xorg-server-1.19.1-i586-1.txz xorg-server 20170115
/var/cache/packages20161120/slackware/x/xorg-server-1.19.0-i586-1.txz xorg-server 20161120
/var/cache/packages20160724/slackware/x/xorg-server-1.18.4-i586-1.txz xorg-server 20160724
/var/cache/packages20170802/slackware/xap/xlockmore-5.54-i586-2.txz xlockmore 20170802
/var/cache/packages20170722/slackware/xap/xlockmore-5.54-i586-1.txz xlockmore 20170722
/var/cache/packages20170412/slackware/xap/xlockmore-5.51-i586-2.txz xlockmore 20170412
/var/cache/packages20170115/slackware/xap/xlockmore-5.50-i586-1.txz xlockmore 20170115
/var/cache/packages20170613/slackware/x/xkeyboard-config-2.21-noarch-1.txz xkeyboard-config 20170613
/var/cache/packages20160724/slackware/x/xkeyboard-config-2.18-noarch-1.txz xkeyboard-config 20160724
/var/cache/packages20170514/slackware/x/xkbcomp-1.4.0-i586-1.txz xkbcomp 20170514
/var/cache/packages20170115/slackware/xap/xine-ui-0.99.9-i686-2.txz xine-ui 20170115
/var/cache/packages20170802/slackware/xap/xine-lib-1.2.8-i586-3.txz xine-lib 20170802
/var/cache/packages20170722/slackware/xap/xine-lib-1.2.8-i586-2.txz xine-lib 20170722
/var/cache/packages20170412/slackware/xap/xine-lib-1.2.8-i586-1.txz xine-lib 20170412
/var/cache/packages20170211/slackware/xap/xine-lib-1.2.6-i586-10.txz xine-lib 20170211
/var/cache/packages20170115/slackware/xap/xine-lib-1.2.6-i586-9.txz xine-lib 20170115
/var/cache/packages20170320/slackware/xfce/xfwm4-4.12.4-i586-1.txz xfwm4 20170320
/var/cache/packages20170802/slackware/a/xfsprogs-4.12.0-i586-1.txz xfsprogs 20170802
/var/cache/packages20170626/slackware/a/xfsprogs-4.11.0-i586-1.txz xfsprogs 20170626
/var/cache/packages20170429/slackware/a/xfsprogs-4.10.0-i586-1.txz xfsprogs 20170429
how would you create a list of older versions of files that can be deleted?
The first field is the actual filename. (Needs to be expanded to include checksum and gpg files, with .md5 and .asc extensions respectively). The second field is the base package name.
The third field is the creation date in ISO format.
Last edited by allend; 09-06-2017 at 09:25 AM .
#2
LQ Guru
Registered: Mar 2012
Location: Hungary
Distribution: debian/ubuntu/suse ...
Posts: 16,490
I would use a sort. In perl/python/other languages you can easily construct your own comparison operator which will make it quite easy. But probably a string based sort is enough
#3
Moderator
Registered: Mar 2011
Location: USA
Distribution: MINT Debian, Angstrom, SUSE, Ubuntu, Debian
Posts: 9,316
What do you do now?
Not trying to be too flip with my answer. My base advice for any script is "Whatever you can type in a command line, you can code into a bash script."
Hence my points here are:
You didn't fully describe your qualifications as to what constitutes a stale file
You did not show any actions which you currently take to remedy this manually
If you currently do have a manual remediation process which you follow, then it would be good to know what you do, for some/all of the other points.
#4
LQ Guru
Registered: Mar 2016
Location: Harrow, UK
Distribution: LFS, AntiX, Slackware
Posts: 5,494
find will do it. It will find files based on all sorts of criteria, and creation date is one of them. For example, you can find all files created more than one month ago and either list them for deletion or delete them on the fly, using find 's -delete option. Read the find man page for more detail.
#5
LQ 5k Club
Registered: Oct 2003
Location: Melbourne
Distribution: Slackware-current
Posts: 5,633
Original Poster
My bad
What I am asking is how would you extract a listing like:
Code:
/var/cache/packages20170115/slackware/l/zlib-1.2.10-i586-1.txz zlib 20170115
/var/cache/packages20170613/slackware/x/xterm-328-i586-1.txz xterm 20170613
/var/cache/packages20170115/slackware/x/xterm-327-i586-1.txz xterm 20170115
/var/cache/packages20161120/slackware/x/xterm-326-i586-1.txz xterm 20161120
/var/cache/packages20161102/slackware/xap/xscreensaver-5.36-i586-1.txz xscreensaver 20161102
/var/cache/packages20170320/slackware/x/xorg-server-xvfb-1.19.3-i586-1.txz xorg-server-xvfb 20170320
/var/cache/packages20170311/slackware/x/xorg-server-xvfb-1.19.2-i586-1.txz xorg-server-xvfb 20170311
/var/cache/packages20170123/slackware/x/xorg-server-xvfb-1.19.1-i586-2.txz xorg-server-xvfb 20170123
/var/cache/packages20170115/slackware/x/xorg-server-xvfb-1.19.1-i586-1.txz xorg-server-xvfb 20170115
/var/cache/packages20161120/slackware/x/xorg-server-xvfb-1.19.0-i586-1.txz xorg-server-xvfb 20161120
/var/cache/packages20160724/slackware/x/xorg-server-xvfb-1.18.4-i586-1.txz xorg-server-xvfb 20160724
/var/cache/packages20170320/slackware/x/xorg-server-xnest-1.19.3-i586-1.txz xorg-server-xnest 20170320
/var/cache/packages20170311/slackware/x/xorg-server-xnest-1.19.2-i586-1.txz xorg-server-xnest 20170311
/var/cache/packages20170123/slackware/x/xorg-server-xnest-1.19.1-i586-2.txz xorg-server-xnest 20170123
/var/cache/packages20170115/slackware/x/xorg-server-xnest-1.19.1-i586-1.txz xorg-server-xnest 20170115
/var/cache/packages20161120/slackware/x/xorg-server-xnest-1.19.0-i586-1.txz xorg-server-xnest 20161120
/var/cache/packages20160724/slackware/x/xorg-server-xnest-1.18.4-i586-1.txz xorg-server-xnest 20160724
/var/cache/packages20170320/slackware/x/xorg-server-xephyr-1.19.3-i586-1.txz xorg-server-xephyr 20170320
/var/cache/packages20170311/slackware/x/xorg-server-xephyr-1.19.2-i586-1.txz xorg-server-xephyr 20170311
/var/cache/packages20170123/slackware/x/xorg-server-xephyr-1.19.1-i586-2.txz xorg-server-xephyr 20170123
/var/cache/packages20170115/slackware/x/xorg-server-xephyr-1.19.1-i586-1.txz xorg-server-xephyr 20170115
/var/cache/packages20161120/slackware/x/xorg-server-xephyr-1.19.0-i586-1.txz xorg-server-xephyr 20161120
/var/cache/packages20160724/slackware/x/xorg-server-xephyr-1.18.4-i586-1.txz xorg-server-xephyr 20160724
/var/cache/packages20170320/slackware/x/xorg-server-1.19.3-i586-1.txz xorg-server 20170320
/var/cache/packages20170311/slackware/x/xorg-server-1.19.2-i586-1.txz xorg-server 20170311
/var/cache/packages20170123/slackware/x/xorg-server-1.19.1-i586-2.txz xorg-server 20170123
/var/cache/packages20170115/slackware/x/xorg-server-1.19.1-i586-1.txz xorg-server 20170115
/var/cache/packages20161120/slackware/x/xorg-server-1.19.0-i586-1.txz xorg-server 20161120
/var/cache/packages20160724/slackware/x/xorg-server-1.18.4-i586-1.txz xorg-server 20160724
/var/cache/packages20170722/slackware/xap/xlockmore-5.54-i586-1.txz xlockmore 20170722
/var/cache/packages20170412/slackware/xap/xlockmore-5.51-i586-2.txz xlockmore 20170412
/var/cache/packages20170115/slackware/xap/xlockmore-5.50-i586-1.txz xlockmore 20170115
/var/cache/packages20160724/slackware/x/xkeyboard-config-2.18-noarch-1.txz xkeyboard-config 20160724
/var/cache/packages20170722/slackware/xap/xine-lib-1.2.8-i586-2.txz xine-lib 20170722
/var/cache/packages20170412/slackware/xap/xine-lib-1.2.8-i586-1.txz xine-lib 20170412
/var/cache/packages20170211/slackware/xap/xine-lib-1.2.6-i586-10.txz xine-lib 20170211
/var/cache/packages20170115/slackware/xap/xine-lib-1.2.6-i586-9.txz xine-lib 20170115
/var/cache/packages20170626/slackware/a/xfsprogs-4.11.0-i586-1.txz xfsprogs 20170626
/var/cache/packages20170429/slackware/a/xfsprogs-4.10.0-i586-1.txz xfsprogs 20170429
from the listing in post #1?
#6
Member
Registered: Mar 2015
Distribution: Linux Mint
Posts: 633
What defines stale?
Just use apt-get's autoclean?
Quote:
autoclean (and the auto-clean alias since 1.1)local repository of retrievedThe difference is that it only removes package files ss. This
Last edited by Sefyir; 09-06-2017 at 09:56 AM .
1 members found this post helpful.
#7
Moderator
Registered: Mar 2011
Location: USA
Distribution: MINT Debian, Angstrom, SUSE, Ubuntu, Debian
Posts: 9,316
Still sorry, but is there a better way to describe this other than asking us to compare two moderately long lists from different posts? The very plain and simple up/down/up on the browser while totally ineffective, tells me that the first entries are different, entirely. I fear that if I take the time to load them up into something like emacs and use ediff to compare I may find 20-30 lines which are just ... different.
#8
LQ 5k Club
Registered: Oct 2003
Location: Melbourne
Distribution: Slackware-current
Posts: 5,633
Original Poster
Quote:
Hence my points here are:
1. File created before the last date
2. Manual action is what I want to remove.
3. I want to eliminate the manual cut and paste process
#9
Member
Registered: Feb 2006
Distribution: Debian Sid
Posts: 792
Perhaps I'm missing something but awk will produce the second listing from the first:
Code:
awk 'dups[$2]++' input_file
You will need to sort if the first list is not ordered by base package name then by date descending.
1 members found this post helpful.
#10
LQ 5k Club
Registered: Oct 2003
Location: Melbourne
Distribution: Slackware-current
Posts: 5,633
Original Poster
Thanks! Just what I needed.
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