Commands by WalkerNolan (0)

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if you are working in two different directories; e.g. verifying files in your home directory; ls ~/ and you need to cd to the /etc/directory. you can enter 'cd -' (no single quotes) to go back and forth between directories.

Clear history

Delete an IPtable rules based on row number

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

fix flash video (flv) file (ffmpeg)
Rebuild flv files that are broken (can't seek). This method probably works for other video/audio formats that can become broken in the same way.

take a screenshot of a webpage

List only the directories
This command would be useful when it is desirable to list only the directories. 'egrep' chooses only the lines that begin with 'd'.

check open ports without netstat or lsof

Find usb device in realtime
Using this command you can track a moment when usb device was attached.

check open ports without netstat or lsof


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