Can sombody help me to understand or to lern how to start a command when any or priticular user logs on de system? for example there is a command "script" it logs all activity of the user , to start it you just type it in the commandline : script and it starts logging , by default the log is writen in users home directory.
what I wanna do is that if sombody logs in to the system , then this command automaticly starts for that user and logs hes activity, this way I can later on see what is going on in case somthing is damaged.
in my case we use the ssh many times so I want to know what does the user doe whe he logs in.

First off, keep in mind that if the file is in the user's home directory, he can edit/delete/etc. the file. In fact, it's almost trivial to do 'ln -s /dev/null typescript' to keep the file from ever being created. Anyway. The /etc/profile or ~/.bash_profile files can be used to run commands on login for a user. Good luck with this.

Can you be more specific, couse I tryd alredy this files but I'cant even find all of them and when I find them there inside in the file is not the info and text wat has to be, and even if it is I'm not realy good at programing , so if you can show me small example , I'll be very thankfull

/etc/profile contains a small bash script usually. Here's a completely fake example:
Where the bold section is what you want run. Also, have you looked at ~/.bash_history?

Don't forget to disclose to users that actions are being logged.

ok this is the end of my profile file

#
# System BASH specials, maybe also good for other shells
#
test -r /etc/bash.bashrc && . /etc/bash.bashrc
if test "$is" = "bash" -a -z "$_HOMEBASHRC" ; then
# loop detection
readonly _HOMEBASHRC=true
test -r $HOME/.bashrc && . $HOME/.bashrc
fi

#
# KSH specials
#
if test "$is" = "ksh" ; then
test -r /etc/ksh.kshrc && . /etc/ksh.kshrc
fi
if test "$is" = "ksh" -a -z "$_HOMEKSHRC" ; then
# loop detection
readonly _HOMEKSHRC=true
test -r $HOME/.kshrc && . $HOME/.kshrc
fi

#
# End of /etc/profile
#
Vigor50:/etc #




Do I make it like this ? :

#
# System BASH specials, maybe also good for other shells
#
test -r /etc/bash.bashrc && . /etc/bash.bashrc
if test "$is" = "bash" -a -z "$_HOMEBASHRC" ; then
# loop detection
readonly _HOMEBASHRC=true
test -r $HOME/.bashrc && . $HOME/.bashrc
fi

#
# KSH specials
#
if test "$is" = "ksh" ; then
test -r /etc/ksh.kshrc && . /etc/ksh.kshrc
fi
if test "$is" = "ksh" -a -z "$_HOMEKSHRC" ; then
# loop detection
readonly _HOMEKSHRC=true
test -r $HOME/.kshrc && . $HOME/.kshrc
fi

# This is the added code for loging
PATH=/bin:/usr/bin:/usr/local/bin
# more code
script

#
# End of /etc/profile
#
Vigor50:/etc #


or my dombo brains are green yet ? sorry if its to stupid, I'm realy trying .Do I make it like this ? :

It's okay, everyone was new to this at one point. I'm always glad to help.

No, you do not need the PATH line, that was just for an example. Just leave the 'script' line in.

do I heave to resart some file/ demon/ or somthing ? after I made the chage to profile ?

It works :-D , now lets chalenge it thank you for help


I'm going to try it out

No problem. In answer to your question, even though you found out yourself: /etc/profile is automatically re-read everytime someone logs in to a shell. It must be a login shell to be read.

There is some problem with this thing,

now its starts everytiyng ok , but for example I loged in , I made soma commands like ls and so on , just to test, after I typed exit then its also normaly says script stoped and file is typescript

then I do : cat typescript and it flys in my screen without stoping it just keeps repeating my comands for examle I just jused 3 commands : ls, cal, ls it has to show

example

cat typescript

then

ls + screen

cal + screen

ls + screen

thats it it has to stop, but it just keeps repeating its like a big file that keeps scroling in the sreen .

so now I'm trying to finde what did I do wrong or what is wrong

Does script work properly if just executed from the command line?

but thera are more small problems , for example if the user logs in 2 times the 1 time things are erased so I'm going to se which extra atributes to put with it and come back with more info

Have you tried script -a to make it append to the previous session?