FreeBSD Tutorials and HowTos
Here you will find tutorial about FreeBSD unix operating system such as – configuration of network, PF firewall/packet filtering, NTA, FreeBSD kernel, building and installing packages, storage, networking services, including HTTP/HTTPS, FTP, NFS, SMB, SMTP, SSH, and NTP ( rss/feed ).
ow do I use the cat command to display the line numbers for a file called myapp.c under Linux or Unix like operating systems? [click to continue…]
am a new vi / vim text editor user. How can I quit the vi / vim text editor without saving my changes to a file under Linux / Unix like operating systems? [click to continue…]
have Squid caching proxy server deployed on Rackspace based server in UK. This server has four IP address. I would like to change outgoing IP addresses from default 184.108.40.206 to 220.127.116.11. How do I change proxy server outgoing IP address under Linux or Unix operating systems? [click to continue…]
need to replace special characters with equivalent hexadecimal unicode under Linux or Unix like operating system. How do I list or find out unicodes for given characters? [click to continue…]
am login to a remote server using a ssh client. I am annoyed with the arrow key behavior during insert mode in Vim. As soon as I hit arrow keys, vim display A B C D on screen. How do I fix this problem under Linux, FreeBSD, OpenBSD, NetBSD, Apple OS X or Unix-like operating systems? How can I fix arrow keys that display A B C D on remote shell? [click to continue…]
ow do I use the rsync tool to copy only the hidden files and directory (such as ~/.ssh/, ~/.foo, and so on) from /home/jobs directory to the /mnt/usb directory under Unix like operating system? [click to continue…]
I see many examples and man pages on how to do operations like search-and-replace using sed. But, I want to match a given string or a regular pattern expression and display on the screen. How do I print lines with matching pattern using sed command only under Unix like operating systems?
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