Commands by oernii3 (2)

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Watch how many tcp connections there are per state every two seconds.

Delete line number 10 from file
Very useful when the ssh key of a host has changed and ssh refuses to connect to the machine, while giving you the line number that has changed in ~/.ssh/known_hosts.

Launch a VirtualBox virtual machine
You can use this on your session login.

Compare an archive with filesystem
and you quickly know the files you changed

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

Rsync files with spaces
Using the double dash before the source and target makes the command work fine with weird filenames.

Google text-to-speech in mp3 format
Usage: t2s 'How are you?' Nice because it automatically names the mp3 file up to 15 characters Modified (uses bash manip instead of tr) t2s() { wget -q -U Mozilla -O $(cut -b 1-15

Replicate a directory structure dropping the files

Display which distro is installed
Works on nearly all linux distros

pretend to be busy in office to enjoy a cup of coffee
Not as taxing on the CPU.


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