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no need for installing mii-tools, all generic tools
working under archlinux.
I usually have 5 or more ssh connections to various servers, and putting this command in my .bash_profile file makes my putty window or x terminal window title change to this easily recognizable and descriptive text. Includes the username, group, server hostname, where I am connecting from (for SSH tunneling), which device pts, current server load, and how many processes are running.
You can also use this for your PROMPT_COMMAND variable, which updates the window title to the current values each time you exec a command.
I prefix running this in my .bash_profile with
$ [[ ! -z "$SSH_TTY" ]] &&
which makes sure it only does this when connecting via SSH with a TTY.
Here's some rougher examples from http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html
$ # If set, the value is executed as a command prior to issuing each primary prompt.
$ #H=$((hostname || uname -n) 2>/dev/null | sed 1q);W=$(whoami)
$ #export PROMPT_COMMAND='echo -ne "\033]0;${W}@${H}:${PWD/#$HOME/~} ${SSH_TTY/\/dev\//} [`uptime|sed -e "s/.*: \([^,]*\).*/\1/" -e "s/ //g"`]\007"'
$ #PROMPT_COMMAND='echo -ne "\033]0;`id -un`:`id -gn`@`hostname||uname -n 2>/dev/null|sed 1q` `command who -m|sed -e "s%^.* \(pts/[0-9]*\).*(\(.*\))%[\1] (\2)%g"` [`uptime|sed -e "s/.*: \([^,]*\).*/\1/" -e "s/ //g"` / `command ps aux|wc -l`]\007"'
$ #[[ -z "$SSH_TTY" ]] || export PROMPT_COMMAND
$ #[[ -z "$SSH_TTY" ]] && [[ -f /dev/stdout ]] && SSH_TTY=/dev/stdout
And here's a simple function example for setting the title:
$ function set_window_title(){ echo -e "\033]0; ${1:
[email protected]$HOST - $SHLVL} \007"; }
I used to use the Firefox "View page info" feature a lot to determine how stale the web page I was looking at was. Now that I use mostly Chrome I miss that feature, so here is a command line alternative using wget. The -S says to display the server response, the --spider says to not download any files/pages, just fetch the header. The output goes to stderr, so to grep it you use 2>&1 to combine the stderr stream with stdout, the pipe that to grep for Last-Modified.
You can use curl instead if you have it installed, like this:
$ curl --head -s http://osswin.sourceforge.net | grep Mod
Downloads Bluetack's level 1 IP blocklist in .p2p format, suitable for various Bittorrent clients.
This is useful for keeping an eye on an error log while developing. The !^ pulls the first arg from the previous command (which needs to be run in a sub-shell for this shortcut to work).
Generates labyrinth-like pattern on UTF-8 terminal in bash.
For fun ;)
Backup a whole directory copying only updated files.
the -A argument forwards your ssh private keys to the host you're going to. Useful in some scenarios where you have to hop to one server, and then login to another using a private key.
...can do similar w/ tar, dd, xfsdump, e2fsdump, etc.
