Commands by jacaetevha (1)

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check open ports without netstat or lsof

Create the signature base string required for a Twitter stream feed
This is the SECOND command in a set for five that are needed for a Twitter stream feed. This command creates variable "b", the so-called "base string" required for oauth in Twitter stream feed requests. (The 256 char limit prevents giving it a better name) We use five environment variables created by a previous step: id, k1, once, ts and k3. The five environment variables are created in a separate command, please see my other commands. For more information on the signature base string, see dev.twitter.com/apps, click on any app (or create a new one) and then go to the "OAuth Tool" tab.

Create a new file

Generate random valid mac addresses
Doubt it actually generates valid mac addresses but this version doesn't need any external commands so it runs much faster. Much shorter as well.

Route outbound SMTP connections through a addtional IP address rather than your primary

Search commandlinefu.com and display with VIMs syntax highlighting!
Multi-argument version, but with VIM loveliness :D

Apply new patch for a directory (originDir)

show dd progress
if you need see progress of long dd command, enter subj on other console

mysqlcheck --defaults-file=/etc/mysql/debian.cnf --auto-repair --all-databases

clean up memory of unnecessary things (Kernerl 2.6.16 or newer)
run sync first to flush useful things out to disk!!! To free pagecache: echo 1 > /proc/sys/vm/drop_caches To free dentries and inodes: echo 2 > /proc/sys/vm/drop_caches To free pagecache, dentries and inodes: echo 3 > /proc/sys/vm/drop_caches


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