arrow up (like doskey), how to 1

[Periko]

Hello,

How can I get a list of my previous commands i typed in ? Like in doskey in the early years, with arrow up, we can take the previous command, etc... etc....

Any idea what the possibilities are with this ? Like listing, deleting this list, etc... ??

Greets...
Pedro...

 

[LGTObug]

it depends on the Shell you are using: if you use "bash" or "shell" it works with "arrow up". When you use "ksh" first excute: set -o vi, after this you will be able with "ESC & K" to went back to the last commands used.

hope this helps

regards

 

[LGTObug]

by the way you can check your Shell with: echo $SHELL

 

[Periko]

OK, thank you guys

So it is /bin/sh

I log in as SU with the passwd. How can i get a list of the commands i typed in before, and how can i delete them, that is realy my question.

Thx in advance...
Pedro...

 

[KenCunningham]

I don't think standard bourne (sh) supports history. You'll need to change to ksh or bash to do this. Someone will correct me if I'm wrong....

 

[Periko]

Hi Ken,

yes, you can, so far i got yet, but read my previous. I suppose it is the file .bash_history or sth like that, that you can edit and clear ? Is that the only way ? Someone ?????

Pedro...

 

[KenCunningham]

Yes. in ksh it's .sh_history. Usually this will cycle the commands based on $HISTSIZE or a similar variable to set the number of commands stored in the file. .sh_history isn't easily read with usual editors or cat, but can be cleared with touch .sh_history if that's what you want to do.

 

[hoinz]

Hi,

if you want to 'read' the commands entered previously: 'history' command works in csh, bash, ksh.
Alternatively : 'strings .sh_history' (or whatever your history file is called)
And I agree with Ken that there is no history for sh .

regards

 

[Periko]

Thx Hoinz,

That a lot of information. Have you any idea if there is any option to disable this feature, that any commands are written to this history file ? if so, how to do ?

Thx...
Pedro...

 

[hoinz]

Hi,
I don't think that there is an easy way to avoid history.
And for security reasons there shouldn't be ...
regards

 

[Loonygirl]

I'm not sure about disabling, and personally I don't want to try this, but I'm sure that if you really don't want to log your previous commands, set the $HISTFILE variable to 0 (not sure if this is allowed), or 1.

I would personally really recommend against this though....

 

[sedj]

Why are you trying to delete or modify your command history ??? Are you hacking a server you shouldn't be, or doing something dodgy ?

Anyone who is doing what they are supposed to does not mind their history being logged !!!

 

[LGTObug]

a hint by the way.
you also can use the command: history : to list your history and : history -c to clear it.

regards