[kobedf]

i'm sorry if i'm iritating you with all those questions ....but......i need help
thanks egorgry for your help

one more
when using a terminal ...suppose i run a program (say ./P ) 10 times...than when i try to get through the list of the recently used commands with the UP and DOWN arrows i find ./P placed there 10 times.
I'll try to change this myself , but i need to know what file i should modify ...or how can i access the shell buffers.
thanks

[egorgry]

teh commands are kept in your .bash_history file.

you can addd this line to your .bashrc file to ignore dups

# don't put duplicate lines in the history.
export HISTCONTROL=ignoredups

[Cardinal]

Another way is just edit your bash profile and set the buffer to 1000 lines for example, then tell it to load your profile by default