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Works for most distributions, tested on Ubuntu, Fedora, CentOS, Gentoo, SUSE, RedHat.
Debian and Slackware:
cat /etc/*version
fold wraps text at 80 characters wide, and with the -s flag, only causes wrapping to occur between words rather than through them.
Creates a full snapshot of your current vim session, including tabs, open buffers, cursor positions, everything. Can be resumed with vim -S . Useful for those times when you HAVE to close vim, but you don't want to lose all your hard-opened buffers and windows. The ! will cause vim to overwrite the file if it already exists. It is not necessary, but useful if you frequently save to the same file (like session.vim or something).
Symlinks all files in the base directory to the target directory then lists all of the created symlinks.
Notes:
* Adjust the find command to your own filters.
* The -P flag forces to keep absolute paths in the tarball, so that you can be sure that the exact same file hierarchy will be created on the second machine.
Displays a list of all the basic keyboard shortcuts in screen.
This command gives a model information of a computer. Also useful in determining the host is a VM machine or actual physical machine.
Useful in scripts while you just need an IP address in a variable.
Deletes thousands of files at one go, I'm not able to recall the exact # of files that rm can delete at one go(apprx. around 7000.)
useful for loops like for i in $(cat list_of_servers); do ssh -q $i hostname; done
if there is an unreachable server, you can just press ctrl + \ to skip that server and continue on with the loop
This will show all physically connected SATA (and SCSI) drives on your system. This is particularly useful when troubleshooting hard disks.... or when a mount point seems to be missing.
Create an ISO Image from a folder and burn it to CD (Os X)
I save this to bin/iptrace and run "iptrace ipaddress" to get the Country, City and State of an ip address using the http://ipadress.com service.
I add the following to my script to get a tinyurl of the map as well:
URL=`lynx -dump http://www.ip-adress.com/ip_tracer/?QRY=$1|grep details|awk '{print $2}'`
lynx -dump http://tinyurl.com/create.php?url=$URL|grep tinyurl|grep "19. http"|awk '{print $2}'