Why cd is not working in shell script?

Why cd is not working in shell script?

Trying to use cd inside the shell script does not work because the shell script runs in the subshell and once the script is over it returns to the parent shell, which is why the current directory does not change. To achieve changing of the directory use sourcing.

How do I change the directory in a script?

To change directories, use the command cd followed by the name of the directory (e.g. cd downloads ). Then, you can print your current working directory again to check the new path.

Can you change directory in a bash script?

when you write “p” on the command line, it will change the directory. If you run a bash script then it will operates on its current environment or on those of its children, never on the parent.

How do I run a current directory in a shell script?

How do I run . sh file shell script in Linux?

1. Open the Terminal application on Linux or Unix.
2. Create a new script file with .sh extension using a text editor.
3. Write the script file using nano script-name-here.sh.
4. Set execute permission on your script using chmod command : chmod +x script-name-here.sh.
5. To run your script :

How do I run a bash script from a different directory?

If you make the scrip executable with chmod 755 to run it you only need to type the path to the script. When you see ./script being used it telling the shell that the script is located on the same directory you are executing it. To use full path you type sh /home/user/scripts/someScript .

Why can’t I change directories using ” CD ” in a script?

Shell scripts are run inside a subshell, and each subshell has its own concept of what the current directory is. The cd succeeds, but as soon as the subshell exits, you’re back in the interactive shell and nothing ever changed there. You’re doing nothing wrong!

Why does each process have its own directory?

The reason is that each process has its own current directory, and when you execute a program from the shell it is run in a new process. The standard “cd”, “pushd” and “popd” are builtin to the shell interpreter so that they affect the shell process.

How to change the directories in a bash script?

With the value set as shown, you can do: and, if there is no sub-directory called java in the current directory, then it will take you directly to $HOME/projects/java – no aliases, no scripts, no dubious execs or dot commands. A bash script operates on its current environment or on that of its children, but never on its parent environment.