topic Re: no command is working in Operating System - HP-UX

no command is working

Guy Tsudkevich — Fri, 17 Apr 2015 02:40:29 GMT

on my quest to fingdthe right PATH command on the right file i probably made the wrong change.

and now the situation is that no command is working beside "pwd" and "cd"

can you help me fix this?

P.S. This thread has been moved from HP-UX > System Administration to HP-UX > languages. - Hp Forum moderator

Re: no command is working

Torsten. — Thu, 16 Apr 2015 09:50:12 GMT

I remember you changed PATH variable yesterday to get bash working. How did you do this?

Re: no command is working

Patrick Wallek — Thu, 16 Apr 2015 13:42:20 GMT

You should always be able to run commands be specifying the full path to the command.

A lot of commands that you regularly use are stored in the /usr/bin directory. So to run a command like 'vi' you would do:

# /usr/bin/vi

To edit your /etc/PATH file again do:

# /usr/bin/vi /etc/PATH

and undo any changes you made yesterday.

You will then likely have to login again and make sure your path is working. Do NOT log out of your current session until you are sure you can login successfully again.

Re: no command is working

Dennis Handly — Thu, 16 Apr 2015 19:35:25 GMT

>no command is working beside "pwd" and "cd"

These are shell builtins, so they will always work.

You need to change PATH:

export PATH=/usr/bin:$PATH

Then figure whether you want to modify /etc/PATH or each user's ~/.profile.

Re: no command is working

Bill Hassell — Fri, 17 Apr 2015 13:50:40 GMT

If you typed this command:

PATH=/usr/local/bin

to get bash to run, now the pathnames for other commands have been removed and you must use the full path for everything else. That's why none of the usual commands seemed to have disappeared. The PATH variable (just like DOS/Windows) is a helper to save you from having to type the full pathname for every command.

The correct way to add a new path is:

PATH=$PATH:/usr/local/bin

If you type the first command above and did not store this line in your profile, log out and and back in again and your PATH will be restored and the other commands will be found again.

If it was stored in /etc/profile or .profile, then use /usr/bin/vi to edit the file to the correct string. Then log out and back in again to restore your PATH variable.

If you edited /etc/PATH and you did not keep a copy of the old file, you'll need to restore the old file from your most recent backup.