在crontab中使用linux命令输出

Question

I made a shell script and registered to execute every 20 minutes. Here is my crontab code.

*/20 * * * * sh /mypath/run_myprocess.sh &> /dev/pts/34

I editted code like this in order to see whether my process run correctly.

I get the result '/dev/pts/34' from tty command in terminal.

However, does anyone know how to use linux command results(in this case: /dev/pts/34) in crontab? This is because I will use several terminal to run my tasks.

For example, in shell script, I can use linux command result in the form of $(command) such as

echo "$(date)"

directly.

Plus, if I type something on the terminal during process running with crontab, it actually gives result. For example,

Process is running........

ls
backup backup.sh Desktop Task_Folder shared_folder
[UserID] ~ # 

So I guess cron jobs run correctly but in background. Please help me to find out how can I bring cron jobs in foreground.

Answer 1

If you start a job on your console and background it you can then bring it to foreground. If the task is not yours or not started on your terminal then you can not.