PATH enviroment

[71GA]

Hello!

I have been playing with enviroment variables and have messed up with PATH variable. I think it had 3 paths included and i have to add them back. Can anyone tell me how can i add more paths under enviroment variable PATH?


Ty

[nebileix]

PATH=<Path u wanna add>:"${PATH}"

Example: PATH=~/bin:"${PATH}"

[71GA]

PATH=<Path u wanna add>:"${PATH}"Example: PATH=~/bin:"${PATH}"

Sooo :"${PATH}" at the end only says that it should add a path not to rewrite it.
If i would use a command: "PATH=/home/.../bin" this would totaly rewrite my PATH enviroment variable and i would loose all paths included in there right?

I think i understand now :)


TY

[AlphaLexman]

Sooo :"${PATH}" at the end only says that it should add a path not to rewrite it.
If i would use a command: "PATH=/home/.../bin" this would totaly rewrite my PATH enviroment variable and i would loose all paths included in there right?

Yes, think of it like this:
PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin
Each directory is separated by the : delimiter.

To add a directory to the variable $PATH, you must include the original value of the or you will lose it.

NOTE: placement of the additional directory can slow down your machine!


PATH=~/bin:"${PATH}"
will look in the user's ~/bin directory before looking for programs (such as 'ls') in /bin or /usr/bin where they most likely exist.

Whereas,

PATH="${PATH}":~/bin
will look in the user's ~/bin directory last.

[71GA]

Wonderfull :)

Just one more thing about part of the command:

"${PART}"



Why is PART in a curly brackets?
What does a $ mean?
Why do we use "" ???

More i know more i ask i am sorry hehe :)

:KS