Why Men Love UNIX

This was mail forward I got a couple of years ago…

Reason why men love UNIX:
$ touch;
$ finger;
$ unzip;
$ strip;
$ mount;
$ mv;
$ halt;
$ mv;
$ halt;
$ mv;
$ halt;
$ mv;
$ halt;
$ mv;
$ halt;
$ mv;
$ halt;
$ mv;
$ halt;
$ mv;
$ halt;
$ mv;
$ halt;
$ core dump;
$ unmount;
$ sleep;
$ ..
and the best thing is.. NO VIRUS!!
Thats why for anything u want to understand in UNIX u have to type
$ man
at the prompt.

Useful Linux Commands

To connect to a Linux client from a Linux box – to do something like xmanager – use the following command:

#tsclient

Tcpdump:

#tcpdump -nnXs 1000 tcp -i any and port 4040

View all the processes running for all users:

#top

#top -d 1 –> refresh every second – by default top refreshes the display every 3 seconds

- can also be used to kill a process.

Some vim (the Vi editor) settings:
create a file in ~ named .vimrc if it does not already exists. The following are a few usefull settings that can be present in the .vimrc file.

systax on
set tabstop=4
set shiftwidth=4
set expandtab
set hlsearch
set ai

Esc combinations

• esc-d: delete word
• esc-f: forward a word
• esc-b: backward a word
• esc-t: transpose two adjacent words

____________CTRL Key Bound_____________

• Ctrl + a – Jump to the start of the line
• Ctrl + b – Move back a char
• Ctrl + c – Terminate the command
• Ctrl + d – Delete from under the cursor
• Ctrl + e – Jump to the end of the line
• Ctrl + f – Move forward a char
• Ctrl + k – Delete to EOL
• Ctrl + l – Clear the screen
• Ctrl + r – Search the history backwards
• Ctrl + R – Search the history backwards with multi occurrence
• Ctrl + u – Delete backward from cursor
• ctrl-t: transpose 2 characters
• ctrl-w: delete previous word
• ctrl-y: yank or recover previous deletion
• Ctrl + xx – Move between EOL and current cursor position
• Ctrl + x @ – Show possible hostname completions
• Ctrl + z – Suspend/ Stop the command

____________ALT Key Bound___________

• Alt + < – Move to the first line in the history
• Alt + > – Move to the last line in the history
• Alt + ? – Show current completion list
• Alt + * – Insert all possible completions
• Alt + / – Attempt to complete filename
• Alt + . – Yank last argument to previous command
• Alt + b – Move backward
• Alt + c – Capitalize the word
• Alt + d – Delete word
• Alt + f – Move forward
• Alt + l – Make word lowercase
• Alt + n – Search the history forwards non-incremental
• Alt + p – Search the history backwards non-incremental
• Alt + r – Recall command
• Alt + t – Move words around
• Alt + u – Make word uppercase
• Alt + back-space – Delete backward from cursor

—————-More Special Keybindings——————-

Here “2T” means Press TAB twice

$ 2T – All available commands(common)
$ (string)2T – All available commands starting with (string)
$ /2T – Entire directory structure including Hidden one
$ 2T – Only Sub Dirs inside including Hidden one
$ *2T – Only Sub Dirs inside without Hidden one
$ ~2T – All Present Users on system from “/etc/passwd“
$ $2T – All Sys variables
$ @2T – Entries from “/etc/hosts“
$ =2T – Output like ls or dir