Check These Out
from http://maysayadkaba.blogspot.com/2008/08/linux-check-ram-speed-and-type.html
I often use "vim -p" to open in tabs rather than buffers.
Create a exact mirror of the local folder "/root/files", on remote server 'remote_server' using SSH command (listening on port 22)
(all files & folders on destination server/folder will be deleted)
www.fir3net.com
Sometimes commands give you too much feedback.
Perhaps 1/100th might be enough. If so, every() is for you.
$ my_verbose_command | every 100
will print every 100th line of output.
Specifically, it will print lines 100, 200, 300, etc
If you use a negative argument it will print the *first* of a block,
$ my_verbose_command | every -100
It will print lines 1, 101, 201, 301, etc
The function wraps up this useful sed snippet:
$ ... | sed -n '0~100p'
don't print anything by default
$ sed -n
starting at line 0, then every hundred lines ( ~100 ) print.
$ '0~100p'
There's also some bash magic to test if the number is negative:
we want character 0, length 1, of variable N.
$ ${N:0:1}
If it *is* negative, strip off the first character ${N:1} is character 1 onwards (second actual character).
Show the current load of the CPU as a percentage.
Read the load from /proc/loadavg and convert it using sed:
Strip everything after the first whitespace:
$ sed -e 's/ .*//'
Delete the decimal point:
$ sed -e 's/\.//'
Remove leading zeroes:
$ sed -e 's/^0*//'
$ function echox { echo `tput cup $(($(tput lines))) $(( ($(tput cols) - $(echo "${#1}"))/2 ))`"$1"`tput cup $(tput lines) $(( $(tput cols)-1 ))`; }
echox prints given argument on bottom line center screen in terminal
$ function echoxy { echo `tput cup $(($(tput lines)/2)) $(( ($(tput cols) - $(echo "${#1}"))/2))`"$1"`tput cup $(tput lines) $(( $(tput cols)-1 ))`; }
exhoxy prints given argument center screen
$ function echos { echo `tput cup $(($(tput lines)-2)) $(($(tput cols)-$(echo ${#1})))&&tput sc`"$1"`tput cup $(($(tput lines)-2)) 0 && tput rc`; }
$ while [ 1 ]; do echos "`date`"; done
echos prints date and time on second from last line (used as status message)
you can easily use these functions by placing them in your .bashrc file, make sure to source your .bashrc once you do
Works for repos cloned via ssh or https.
You can push files to up to 32 servers at once assuming ssh keys are in place.
Great tool, it is part of the pssh suite.
A simple directive which disables all aliases and functions for the command immediately following it. Shortcut for the bash built-in 'command' - "command linefoo".
Think, {sic}...
