Commands by GraceAllen (0)

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Copy something to multiple SSH hosts with a Bash loop
Just a quick and simple one to demonstrate Bash For loop. Copies 'file' to multiple ssh hosts.

Show changed files, ignoring permission, date and whitespace changes
Only shows files with actual changes to text (excluding whitespace). Useful if you've messed up permissions or transferred in files from windows or something like that, so that you can get a list of changed files, and clean up the rest.

Benchmark SQL Query
Benchmark a SQL query against MySQL Server. The example runs the query 10 times, and you get the average runtime in the output. To ensure that the query does not get cached, use `RESET QUERY CACHE;` on top in the query file.

Poor man's ntpdate
If you don't have netcat, you can use curl.

List the size (in human readable form) of all sub folders from the current location
Sorted in human readable format.

force a rescan on a host of scsi devices (useful for adding partitions to vmware on the fly)

Find the package that installed a command

a function to find the fastest DNS server
http://public-dns.info gives a list of online dns servers. you need to change the country in url (br in this url) with your country code. this command need some time to ping all IP in list.

Unlock more space form your hard drive
This command changes the reserved space for privileged process on '/dev/sda' to 1 per cent.

Color man pages
Add the followin to ~/.bashrc #colour export LESS_TERMCAP_mb=$'\E[01;31m' export LESS_TERMCAP_md=$'\E[01;37m' export LESS_TERMCAP_me=$'\E[0m' export LESS_TERMCAP_se=$'\E[0m' export LESS_TERMCAP_so=$'\E[01;44;33m' export LESS_TERMCAP_ue=$'\E[0m' export LESS_TERMCAP_us=$'\E[01;32m'


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