am trying to remove a directory called /opt/source/httpd with the rm command. I am greeted with the following message:
rmdir: failed to remove `/opt/source/httpd’: Directory not empty
How do I delete directory called /opt/source/httpd under Linux or Unix operating systems?
ow do I find out mysql version under Linux or Unix operating systems?
ow do I install OpenBSD as guest operating system when using KVM? How can I use virt-install to setup OpenBSD VM under KVM running on a CentOS Linux 7 server?
In Unix or Linux operating systems, how do I move file(s) starting with a dash (e.g., /home/you/–filename.txt or /home/you/-filename.txt)?
ow can I remove the ^M or ^M (carriage Return / line feed ) from text file using sed under UNIX or Linux operating systems?
ecause of security issues I would like to change the vsftpd server tcp port # 21. How do I configure vsftpd to use another port instead of the default TCP port 21? How to change vsftpd ftp port number in Linux or Unix?
ow do I find the largest top files and directories on a Linux or Unix like operating systems?