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isilia
Apprentice
Joined: 25 Feb 2008
Posts: 177
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 Posted: Sat Nov 29, 2008 7:18 pm Post subject: etc cruft cleaner |
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Hi, I wrote a bash script that checks for cruft files in /etc, this is my first useful script written in bash so tips are welcome.
There are two versions of the script, one you can put in /usr/bin/ which will hide your blacklist file in ~/.blacklist and one you can simply run from any directory with your blacklist file in ./blacklist (so you can delete the script afterwards).
/usr/bin version (please note the blacklist is called .blacklist so it might be hidden)
/temporary version
The default blacklist (included in the downloads) is derived from a fresh gentoo installation with only system packages installed.
How to use it:
| Code: | isilia@Gentoo ~ $ cruftcleaner --help
Usage: cruftcleaner.sh [directory] [blacklist (optional)]
Cruft cleaner is only designed for /etc/ and its subdirectories
Cruft cleaner depends on gentoolkit as it uses equery!
Blacklists are used to filter files that don't belong to any packages (see equery b) but are not cruft
Blacklists should be written using one line per specified file, without the full path |
How it works:
1. It checks if the files/directories in /etc (or any of its subdirectories) belong to any packages using equery b.
2. If not, then it compares the files to the files in a self specified blacklist (I included a default one).
3. If the files are not on the blacklist, it prints the cruft files.
Example:
| Code: | isilia@Gentoo ~ $ cruftcleaner /etc/
Gentoolkit is installed... Continuing
Directory seems to be valid...
You have not specified a blacklist, I will continue to use the default blacklist at ~/blacklist
We will now determine which files might be cruft:
/etc/example/
Finished, think twice before deleting anything! |
This is my /etc/ directory's contents:
| Code: | isilia@Gentoo ~ $ ls /etc/
ConsoleKit default gentoo-release inittab make.profile ntp.conf rpc sound
DIR_COLORS dispatch-conf.conf gimp inputrc man.conf pam.d rsyncd.conf ssh
X11 eclean gnome-vfs-2.0 issue mke2fs.conf pango runlevels ssl
a2ps eixrc gnome-vfs-mime-magic issue.logo modprobe.conf papersize sane.d sysctl.conf
adobe env.d gre.d ld.so.cache modprobe.d passwd screenrc syslog.conf
bash environment group ld.so.conf modules.d passwd- scsi_id.config terminfo
bonobo-activation eselect group- locale.gen mono portage securetty timezone
ca-certificates etc-update.conf gshadow localtime mpd.conf profile security udev
ca-certificates.conf example gshadow- login.defs mplayer profile.csh sensors.conf updatedb.conf
conf.d exports gtk-2.0 logrotate.d mplayerplug-in.conf profile.env services wgetrc
conky filesystems hal lynx.cfg mtab protocols sgml xdg
cron.daily fonts host.conf lynx.lss nanorc rc.conf shadow xinetd.d
csh.env fstab hosts make.conf networks resolv.conf shadow- xml
cups gai.conf idmapd.conf make.conf.catalyst nscd.conf revdep-rebuild shells
dbus-1 gconf init.d make.globals nsswitch.conf rmt skel
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It works on /etc/ subdirectories as well:
| Code: | isilia@Gentoo ~ $ cruftcleaner /etc/X11/
Gentoolkit is installed... Continuing
Directory seems to be valid...
You have not specified a blacklist, I will continue to use the default blacklist at ~/.blacklist
We will now determine which files might be cruft:
/etc/X11/XvMCConfig
/etc/X11/xorg.conf.backup
Finished, think twice before deleting anything! |
| Code: | isilia@Gentoo ~ $ ls /etc/X11/
Sessions XvMCConfig chooser.sh dm gdm startDM.sh wmsession.d xinit xorg.conf xorg.conf.backup xorg.conf.example |
Using a custom blacklist:
| Code: | isilia@Gentoo ~ $ cruftcleaner /etc/X11/ custom_blacklist
Gentoolkit is installed... Continuing
Directory seems to be valid...
Will use specified blacklist at custom_blacklist
Warning! Your blacklist does not filter /etc/make.conf, are you sure it's valid?
Pausing for 5 seconds
Continuing...
We will now determine which files might be cruft:
/etc/X11/XvMCConfig
Finished, think twice before deleting anything!
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| Code: | isilia@Gentoo ~ $ cat custom_blacklist
xorg.conf.backup
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mirekm
Apprentice
Joined: 12 Feb 2004
Posts: 219
Location: Gliwice
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| Posted: Sun May 12, 2013 1:18 pm Post subject: |
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Faster searh function for etc cruft:
| Code: |
#!/bin/bash
BASH_COLOR_RESET="\e[0m"
BASH_COLOR_GREEN="\e[01;32m"
BASH_COLOR_RED="\e[01;31m"
FILES_OK=0
FILES_BAD=0
FILES_TOTAL=0
echo "Search for all etc files in portage db"
find /var/db/pkg|grep CONTENTS|xargs cat |grep "obj /etc/"|cut -d" " -f2 |sort >/tmp/lista
echo "Search existing files in /etc/"
find /etc -type f|sort >/tmp/lista2
echo "Comparison of the results"
diff -U0 /tmp/lista /tmp/lista2|grep -v "\@\@" |tail --lines +3|sort> /tmp/result
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In /tmp/result you will get list of files:
- that don't belongs to any package - there are lines starting with "+"
- files that are missing - there are lines starting with "-" |
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khayyam
Watchman
Joined: 07 Jun 2012
Posts: 6227
Location: Room 101
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| Posted: Sun May 12, 2013 8:52 pm Post subject: |
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| mirekm wrote: | | Code: | | find /var/db/pkg|grep CONTENTS|xargs cat |grep "obj /etc/"|cut -d" " -f2 |sort >/tmp/lista |
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mirekm ... you could simplfy this, and avoid the double grep, UUOC, and cut ...
| Code: | | find /var/db/pkg -name CONTENTS -exec awk '/^obj[ ]\/etc/{print $2}' {} \; |sort > /tmp/out.lst |
or to also filter .keep files:
| Code: | | find /var/db/pkg -name CONTENTS -exec awk '/^obj[ ]\/etc/ && !/.*keep.*/{print $2}' {} \; |sort > /tmp/out.lst |
best ... khay |
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