How Can I Execute Shell Commands with Redirections and Pipes from Java?

How to Execute Shell Commands with Redirections and Pipes from Java

Executing Linux commands from Java presents challenges when utilizing redirections and pipes. The conventional approach using Runtime.getRuntime().exec("shell command") falls short in this regard.

To address this, consider the following solution:

Process p = Runtime.getRuntime().exec(new String[]{"csh", "-c", "cat /home/narek/pk.txt"});

In this line, we specify an array of strings to the exec method. The first string represents the shell (e.g., csh, bash), while the subsequent string(s) constitute the command itself.

Note that the exact shell command may vary depending on your system's configuration. For instance, if csh is unavailable, you can substitute it with bash.

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