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Display connections histogram
Displays a connection histogram of active tcp connections. Works even better under an alias. Thanks @Areis1 for sharing this one.

route add default gateway

list block devices
Shows all block devices in a tree with descruptions of what they are.

Stop Flash from tracking everything you do.
Brute force way to block all LSO cookies on a Linux system with the non-free Flash browser plugin. Works just fine for my needs. Enjoy.

copy from host1 to host2, through your host
Good if only you have access to host1 and host2, but they have no access to your host (so ncat won't work) and they have no direct access to each other.

generate random password
for Mac OS X

Execute a command without saving it in the history
Yes, by correctly setting the HIST* variables you can make certain commands not saved in history. But that's complicated and easy to make a mistake. If you set HISTFILE= to blank, nothing in your current shell session will be saved in history. Although this is not a precise answer to the subject, but it's very simple.

convert ascii string to hex
You can use "decode()" in a similar manner: $ python -c 'print "68656c6c6f".decode("hex")'

Bash: escape '-' character in filename
If you don't escape the - of the filename, you will get the command interpreting it as a parameter, returning (in the best case) an error.

Get AWS temporary credentials ready to export based on a MFA virtual appliance
You might want to secure your AWS operations requiring to use a MFA token. But then to use API or tools, you need to pass credentials generated with a MFA token. This commands asks you for the MFA code and retrieves these credentials using AWS Cli. To print the exports, you can use: `awk '{ print "export AWS_ACCESS_KEY_ID=\"" $1 "\"\n" "export AWS_SECRET_ACCESS_KEY=\"" $2 "\"\n" "export AWS_SESSION_TOKEN=\"" $3 "\"" }'` You must adapt the command line to include: * $MFA_IDis ARN of the virtual MFA or serial number of the physical one * TTL for the credentials


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