linux - How can I change the binary file link to something else -


i have 2 questions , linked. execute command this:

python on shell , opens shell.

now want

  1. to file linked. mean when run python path of file opens /usr/bin/python or what?

  2. the other questions want change link other location when run python opens /usr/bal/bla/python2.7.

the command run when type python determined setting of $path. first executable file called python found in directory listed on $path 1 executed. there no 'link' per se. which command tell shell executes when type python.

if want python open different program, there number of ways it. if have $home/bin on $path ahead of /usr/bin, can create symlink:

ln -s /usr/bal/bla/python2.7 $home/bin/python

this executed instead of /usr/bin/python. alternatively, can create alias:

alias python=/usr/bal/bla/python2.7

alternatively again, if /usr/bal/bla contains other useful programs, add /usr/bal/bla $path ahead of /usr/bin.

there other mechanisms too, 1 of these 1 use. i'd use symlink in $home/bin.


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