I used 'change directory' in my shell script (bash)
#!/bin/bash
alias mycd='cd some_place'
mycd
pwd
pwd
prints some_place
correctly, but after the script finished my current working directory doesn't change.
Is it possible to change my path by script?
You need to source the file as:
. myfile.sh
or
source myfile.sh
Without sourcing the changes will happen in the sub-shell and not in the parent shell which is invoking the script. But when you source a file the lines in the file are executed as if they were typed at the command line.