On Fri, Jun 24, 2022 at 07:36:00AM -0800, Roger Heflin wrote:
Trick is add this around the path add.
If [ $path_add -ne 1 ] ; then
Path addition code
Path_add=1
Fi
That only runs it once.
On Fri, Jun 24, 2022, 4:09 AM Anil F Duggirala <anilduggirala(a)fastmail.fm>
wrote:
> hello,
> I would like to change the $PATH environment variable permanently, to
> be able to execute a program more quickly.
> I have tried adding a new line: export PATH=$PATH:/my/path , to my
> .bashrc .
> When I log in again, I see that $PATH is now: $PATH:/my/path/:/my/path,
> my directory has been appended twice.
> I don't know exactly what the "export" command actually does, so I am
> lost here.
> thanks for your help.
Conceptually similar to Roger's approach, I set an environment
variable "OrigPATH" to the initial PATH then assign PATH based
on OrigPATH.
# save a copy of the original path to modify
export OrigPATH=${OrigPATH:-$PATH}
# adjust PATH from OrigPATH to my tastes
export PATH=$HOME/bin:$OrigPATH:/my/path
--
Jon H. LaBadie jonfu(a)jgcomp.com