It was a quite long smooth run of my slackware for almost two years, with stock Linux kernel and later before 3 or 4 months with Linux-3.18.1-smp with no faults or crash so far.

I was wondering to configuring root's window manager and appearance.

What exactly I did..
1. edited vifmrc(filemanager),
2. vimrc,
3. echinusrc(echinus wm)
4. add some theme files to /usr/share/themes
5. and at last edited .Xresources and .zshrc file
to add some eye-candy..

Now, there was a power-cut and i couldn't able to do clean shutdown(usually i issue halt command to do so)

When power was back, bootup was good and okay but the problem is (screenshot attached) is
1. logged in, did su and issued pkgtool command to which output was "command not found"
2. and issued halt command which was weird that it simply changed the directory from ~ to /sbin
(but shutdown -h now or shutdown -r works good)

What I tried..
Just googled regarding my problem and i tried reinstalling pkgtool package with boot cd but it was no use.. I am not sure what went wrong please give the respective tips or links so that i can figure out what happened.

Attached Thumbnails

   

Maybe because of the powercut something got mangled and root is no longer recognized as root.

What happens if you try bash? (you edited the .zshrc file, maybe that needs removing/repairing)
Is the halt (or pkgtool) command still there? And does it work? I.e. as root try 'which' <command> and then try to run them with the full path.
What happens in runlevel 3 (before startx) and you login as root. Does pkgtool and halt as commands still work?

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Most likely you don't have /sbin in your $PATH and it has nothing to do with the power failure.

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@brobr

And yeah bash results same thing also the same when before startx and also with logged in separately with root,
[CODE]> whereis pkgtool
pkgtool: /sbin/pkgtool ./pkgtool.png /usr/man/man8/pkgtool.8.gz /usr/share/man/man8/pkgtool.8.gz /usr/X11/man/man8/pkgtool.8.gz

> whereis halt
halt: /sbin/halt /usr/man/man8/halt.8.gz /usr/share/man/man8/halt.8.gz /usr/X11/man/man8/halt.8.gz



@GazL
That was a good observation.. I am now working on it..

Good observation GazL... I solved the problem.. and yes it has nothing to do with power-failure.

and as stated by @brobr the problem was with .zshrc file..
and i found this thread was helpful http://www.linuxquestions.org/questions/linux-newbie-8/as-root-not-seeing-sbin-and-usr-sbin-in-path-174427/

yeah.. Here is what i did..
1. checked the /etc/profile for any corruption or change.. and found that root should use /usr/local/sbin .
2. which was missing in the .zshrc file with the export PATH="..."
3. so i added /usr/local/sbin to that line and sourced the .zshrc file.
4. But nothing happened and then i added /sbin to the same line and voila problem solved as when i issued pkgtool command it popped up!!

Thanks for your quick reply!
Thread solved!

Make sure you also have /usr/sbin included as that has a number of additional programs located there.

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Sure bro!