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What is default shell?
The Default Shell On Linux BASH is the most popular shell and hence found on most of the Linux distributions as the default shell. To check your default shell in Linux, you can use the following command. echo $SHELL. Output: /bin/bash. This means that the shell currently in use on my system is the BASH shell.
What is cron shell?
The software utility cron also known as cron job is a time-based job scheduler in Unix-like computer operating systems. Users who set up and maintain software environments use cron to schedule jobs (commands or shell scripts) to run periodically at fixed times, dates, or intervals.
What is the default shell in Raspbian?
Bash
Bash is the name of the programming language and “shell” that powers the text interface of your Raspberry Pi. Every time you type a command into the terminal, you’re speaking Bash.
Which shell does cron use?
/bin/sh
Cron Uses /bin/sh By Default, Not Bash Bash ( /bin/bash ) is a common shell on most distros, and is an implementation of sh.
Is zsh better than Bash?
For the most part bash and zsh are almost identical which is a relief. Navigation is the same between the two. The commands you learned for bash will also work in zsh although they may function differently on output. Zsh seems to be much more customizable than bash.
Which is the default shell for Cron command?
The default shell for cron commands is /usr/bin/bsh, unless you have entered #!/usr/bin/ksh as the first line of the script to define the specific shell for cron to run. The environment set up by cron starts with what is defined in the /etc/environment file.
How to check if the cron daemon is running?
If you do not get mail back, check to see if the cron daemon is running. Enter the following: Look for a line where the last field is: /usr/sbin/cron or /etc/cron. If cron is not running, check the /etc/inittab file for an entry such as the following: Then recheck using the ps command above to see if cron is running.
How to stop the Cron and AT commands work?
The correct way to add or change a cron entry is to log in or su to the userID and then issue the crontab -e command. If you have manually edited one of the files, you must stop the cron daemon and let it respawn (restart). To stop the cron daemon, follow the steps below:
Where do I find the cron deny file?
In the /var/adm/cron directory are two files: cron.deny and at.deny. When installing, both are empty. If a cron.allow file exists in this directory, the user ID (including root) must be in the file before it can run cron jobs. For the at command, there is an at.allow file.