ksh and command history

[Padma Asrani]

Hi

I am working on HPUX system. I access the system using my personal id and then I run sudo ksh to enter as a super user.

I am facing one problem after running sudo. I am not able to run the previous command which I ran as a super user using short cut key k. Is it easy to fix this issue?

Regards
PAdma

[Sandman!]

You need to be in vi mode for that and the syntax is on keyboard:

# set -o vi

[Padma Asrani]

Hi

Thanks for the help but it doesn't work :-(

Regards
Padma

[Peter Nikitka]

Hi,

first check/list the command history via
fc -l

mfG Peter

[Padma Asrani]

Hi

Here is the output

fc -l
ksh: fc: no history file

[James R. Ferguson]

Hi:

The root '.profile' should also contain:

# export HISTFILE=${HOME}/.sh_history

Regards!

...JRF...

[Padma Asrani]

Hi

I have echoed the $HISTFILE and it results

/homes/indigo/padmaasr/.sh_history

padmaasr@tthp49: ls -al /homes/indigo/padmaasr/.sh_history
-rwx------ 1 root sys 70932 Jul 5 14:56 /homes/indigo/padmaasr/.sh_history

When I open the .sh_history file under my home directory it says permission denied. I have working as a super user and my id shows the following output.

padmaasr@tthp49: id
uid=0(root) gid=3(sys) groups=0(root),1(other),2(bin),4(adm),5(daemon),6(mail),7(lp),20(users),111(security),299(opcgrp),555(www),711(nt)


Regards
Padma

[Jannik · Accepted solution]

I would not use the sudo to a shell, this will not give you the environment for the root user. You should rather use the command "sudo su -" or "sudo su - root" this would give you the correct environment.

You could change the way of the history for root to match the individual user:
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=901609&admit=-682735245+1183670098597+28353475

[Padma Asrani]

Thanks a lot to all

[Dennis Handly]

I would never expect to share the history file from when I'm a normal user and then when I su.

If I try, it gets either corrupted or it doesn't work because root has no privileges to write to my NFS home directory.

So before I do, I typically reset HISTFILE:
$ HISTFILE=/tmp/.sh_history sudo ...