Commands by knityster (0)

  • bash: commands not found

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Update all packages installed via homebrew

Most simple way to get a list of open ports

detach remote console for long running operations
Starts midnightcommander and allows you to detach the console; use ctrl-\ to detach Then at a later time you can reconnect using $ dtach -a /tmp/wires-mc In my experience dtach works much better for programs like irssi, mutt, mc, aptitude than screen does.

Convert mp3/wav file to asterisk ulaw for music on hold (moh)

Find out how much data is waiting to be written to disk
Ever ask yourself "How much data would be lost if I pressed the reset button?" Scary, isn't it?

Get line count for any file ending with extension recursively rooted at the current directory.

Create/open/use encrypted directory
Create/open/use an encrypted directory encfs needs to be installed During creation easiest to use default values The encrypted files will be in ~/.crypt and you will work as usual in ~/crypt To close the encrypted directory run: fusermount -u ~/crypt When you switch off the computer the encrypted directory will be automatically closed This example uses /home/user/crypt as encrypted directory I use ubuntu linux 8.04 and I am also the creator of www.minihowto.org

Find duplicate UID in /etc/passwd
You can use only awk

Go to parent directory of filename edited in last command
Uses the last argument of the last executed command, and gets the directory name from it. Use $!:t for the filename alone, without the dirname.

Show simple disk IO table using snmp
Show a simple table with disk IO for the specified host. you monitor a LOT of different thing. Mostly used for MRTG and similar, but this is nice for a quick look, which disk is busy. "public" is your SNMP community ensure that snmpd is running on the host which you intend to monitor


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