Debian/Ubuntu Linux: bash: mail command not found – Solution
In Linux operating system, the following error may occur when running mail command to access a mailbox, maildir, mail file:
How to Generate random number in Linux
How to generate random number in Linux? You can easily generate random numbers with the custom limit range by using
Delete / Remove User account in Linux – userdel
How do I delete / remove user account from my server? How do I delete a user account under Linux
How to disable apache modules? (a2dismod)
How to disable apache modules? question is very common among system administrators. You can easily disable unwanted apache / apache2
How to remove / Uninstall postfix from Ubuntu
Postfix is a free and open-source mail transfer agent that routes and delivers electronic mail. To remove postfix package completely
How to enable / disable / deactivate user account in Samba server – smbpasswd
Samba server is a free software of Server Message Block networking protocol. Mainly used for sharing files and print services
PHP Fatal error: Call to undefined function imap_open() fix
If you want to work with the IMAP protocol, as well as the NNTP, POP3 and local mailbox access methods, you must install the “php-imap”
Linux finding largest files in directory recursively – find,sort,head
Linux Find command is used to search and locate the list of files and directories based on conditions you specify
Ubuntu Clean up “No Longer Required Packages”
apt-get autoremove is the Linux command used to remove packages that were automatically installed to satisfy dependencies for other packages
Ubuntu upgrade / update package patch using apt-get install
We often install the required packages in our system / server based on our requirements and needs. Packages are maintained
List Available Package Updates (apt-get) in Ubuntu
The Ubuntu Linux package manager has inbuilt tools to list the available updates for installed deb packages. There are different
cal – How to get monthly and yearly calendar in Linux
The “cal” command displays a simple calendar with Linux / UNIX date and time. If no argument passed, then the
ls -alt: How to list/get last modified files from current directory or any other specific directory in Linux
The ls command lists the contents of, and optional information about, directories and files. ls without option lists the files
How to verify configured virtual hosts in apache: apache2ctl – Apache HTTP Server Control Interface
Creating virtual host configurations on your Apache server does not magically cause DNS entries to be created for those host
How to create new user account with home directory in Open SUSE Linux
To create a new user account in Open suse, please use the below command. # useradd -g usergroup -p testpwd
