CODEWITHSUNDEEP
javamacosbash
12f0af0
12f0af0

Reputation: 105

run java exec command, always need full absolute path to the application?

Environment: mac

Precondition: I already configured 'adb' full path to my bash_profile. and when I tried type 'adb' in my terminal, it is working.

But, I tried to exec 'adb' command from java, 'adb' is not working, instead I need to pass the full adb path to make it work.

I guess this is probably something to do with the bash_profile setting, anyone know the exact reason for this issue?

Upvotes: 1

Views: 912

Answers (1)

dhke
dhke

Reputation: 15388

Runtime.getRuntime().exec() runs /bin/sh -c <command>. If this is or points to a bash shell on your system: A non-interactive bash does not read .bash_profile unless explicitly (--login) told to do so.

From the documentation:

When Bash is invoked as an interactive login shell, or as a non-interactive shell with the --login option, it first reads and executes commands from the file /etc/profile, if that file exists. After reading that file, it looks for ~/.bash_profile, ~/.bash_login, and ~/.profile, in that order, and reads and executes commands from the first one that exists and is readable. The --noprofile option may be used when the shell is started to inhibit this behavior.

It's a little convoluted, but non-interactive, non-login bash instances don't read the profile files.

Your path settings does not get picked up by the subshell (which is actually /bin/sh which might not even be bash at all).

If you want, you can add the path to adb system wide by adding an appropriate entry to to /etc/paths.d.

Upvotes: 1

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