Date: Thu, 15 Aug 2002 11:26:23 +0930 From: Greg 'groggy' Lehey <grog@FreeBSD.org> To: "Defryn, Guy" <G.P.Defryn@massey.ac.nz> Cc: "'freebsd-questions@FreeBSD.ORG'" <freebsd-questions@freebsd.org> Subject: Re: uninstalling software Message-ID: <20020815015623.GF36655@wantadilla.lemis.com> In-Reply-To: <98B01D2717B9D411B38F0008C7840931057F3AF6@its-xchg2.massey.ac.nz> References: <98B01D2717B9D411B38F0008C7840931057F3AF6@its-xchg2.massey.ac.nz>
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On Thursday, 15 August 2002 at 8:58:48 +1200, Defryn, Guy wrote:
>
>
> I would like to uninstall some software on my freebsd box.
> I never use the ports or packages so I cannot use PKG_delete
>
> What is the best way of uninstalling programs if you've build them
> From the source code?
That depends on the software. There's no "one size fits all". This
is one of the reasons we created the Ports Collection.
I'd recommend you read the information supplied with your packages.
One other possibility is related to a recommendation in my book
"Porting UNIX Software" (starting on page 155):
More frequently, however, you can't use this approach: the Makefile isn't
as easy to find, or you have long since discarded the source tree. In this
case, we'll have to do it differently. First, we find the directory where the
executable gs, the main ghostscript program, is stored:
$ which gs
/opt/bin/gs
Then we look at the last modification timestamp of /opt/bin/gs:
$ ls -l /opt/bin/gs
-rwxrwxr-x 1 root wheel 3168884 Jun 18 14:29 /opt/bin/gs
This is to help us to know where to look in the next step: we list the directory
/opt/bin sorted by modification timestamp. It's a lot easier to find what
we're looking for if we know the date. If you don't have which, or
possibly even if you do, you can use the following script, called wh:
for j in $*; do
for i in `echo $PATH|sed 's/:/ /g'`; do
if [ -f $i/$j ]; then
ls -l $i/$j
fi
done
done
wh searches the directories in the current environment variable
PATH for a specific file and lists all occurrences in the order
in which they appear in PATH in ls -l format, so you could
also have entered:
$ wh gs
-rwxrwxr-x 1 root wheel 3168884 Jun 18 14:29 /opt/bin/gs
Once we know the date we are looking for, it's easy to list the directory, page
it through more and find the time frame we are looking for.
$ ls -lt /opt/bin|more
total 51068
-rw------- 1 root bin 294912 Sep 6 15:08 trn.old
-rwxr-xr-x 1 grog lemis 106496 Sep 6 15:08 man
-rw-rw-rw- 1 grog bin 370 Jun 21 17:24 prab~
-rw-rw-rw- 1 grog bin 370 Jun 21 17:22 parb
-rw-rw-rw- 1 grog bin 196 Jun 21 17:22 parb~
-rwxrwxrwx 1 grog wheel 469 Jun 18 15:19 tep
-rwxrwxr-x 1 root wheel 52 Jun 18 14:29 font2c
-rwxrwxr-x 1 root wheel 807 Jun 18 14:29 ps2epsi
-rwxrwxr-x 1 root wheel 35 Jun 18 14:29 bdftops
-rwxrwxr-x 1 root wheel 563 Jun 18 14:29 ps2ascii
-rwxrwxr-x 1 root wheel 50 Jun 18 14:29 gslp
-rwxrwxr-x 1 root wheel 3168884 Jun 18 14:29 gs
-rwxrwxr-x 1 root wheel 53 Jun 18 14:29 gsdj
-rwxrwxr-x 1 root wheel 51 Jun 18 14:29 gsbj
-rwxrwxr-x 1 root wheel 18 Jun 18 14:29 gsnd
-rwxrwxr-x 1 root wheel 54 Jun 18 14:29 gslj
-rwxr-xr-x 1 root bin 81165 Jun 18 12:41 faxaddmodem
-r-xr-xr-x 1 bin bin 249856 Jun 17 17:18 faxinfo
-r-xr-xr-x 1 bin bin 106496 Jun 17 15:50 dialtest
...more stuff follows
It's easy to recognize the programs in this format: they were all installed in
the same minute, and the next older file (faxaddmodem) is more than 90
minutes older, the next newer file (tep) is 50 minutes newer. The files we
want to remove are, in sequence, font2c, ps2epsi, bdftops,
ps2ascii, gslp, gs, gsdj, gsbj, gsnd and
gslj.
We're not done yet, of course: ghostscript also installs a lot of fonts
and PostScript files, as we saw in the Makefile. How do we find and remove
them? It helps, of course, to have the Makefile, from which we can see
that the files are installed in the directories /opt/bin,
/opt/lib/ghostscript and /opt/man/man1. If you don't have the Makefile, all is
not lost, but things get a little more complicated. You can search the complete
directory tree for files modified between Jun 18 14:00 and Jun 18
14:59 with:
$ find /opt -follow -type f -print|xargs ls -l|grep "Jun 18 14:"
-rwxrwxr-x 1 root wheel 35 Jun 18 14:29 /opt/bin/bdftops
...etc
-rw-rw-r-- 1 root wheel 910 Jun 18 14:29 /opt/man/man1/ansi2knr.1
-rw-rw-r-- 1 root wheel 10005 Jun 18 14:29 /opt/man/man1/gs.1
-rw-rw-r-- 1 root wheel 11272 Jun 18 14:29 /opt/lib/ghostscript/Fontmap
-rw-rw-r-- 1 root wheel 22789 Jun 18 14:29 /opt/lib/ghostscript/bdftops.ps
-rw-rw-r-- 1 root wheel 295 Jun 18 14:29 /opt/lib/ghostscript/decrypt.ps
-rw-rw-r-- 1 root wheel 74791 Jun 18 14:29 /opt/lib/ghostscript/doc/NEWS
-rw-rw-r-- 1 root wheel 13974 Jun 18 14:29 /opt/lib/ghostscript/doc/devices.doc
...many more files
There are a couple of points to note here:
We used GNU find, which uses the -follow option to follow
symbolic links. If your /opt hierarchy contains symbolic links,
find would otherwise not search the subdirectories. Other versions of
find may require different options.
You can't use ls -lR here because ls -lR does not show the full
pathnames: you would find the files, but the name at the end of the line would
just be the name of the file, and you wouldn't know the name of the directory.
If the file is more than six months old, ls -l will list it in the form
-rwxrwxrwx 1 grog wheel 22 Feb 10 1994 xyzzy
This may be enough to differentiate between the files, but it's less certain.
GNU ls (in the fileutils package) includes a option
--full-time (note the two leading hyphens). This will always
print the full time, regardless of the age of the file. With this option, the file
above will list as:
$ ls --full-time -l xyzzy
-rwxrwxrwx 1 grog wheel 22 Thu Feb 10 16:00:24 1994 xyzzy
Greg
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