Commands by wdog (1)

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print all except first collumn

need ascii art pictures for you readme text ?
Require boxes and / or cowsay packages. After input boxes -d dog , type your text and then press ctrl + d . Same goes for cowsay .

Watch command
Repeat command after every 2 secs

Print only the odd lines of a file (GNU sed)
The tilde address operator is an extension of GNU sed. It won't work with POSIX sed.

Makefile argument passing
This would allow reference of $(VAR) (if defined) with the value 'foobar' within the Makefile.

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

Sorted list of established destination connections
no need grep. its redundant when awk is present.

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Perl one-liner to determine number of days since the Unix epoch
There are some environments that use this value for password and account expiration. It's helpful to be able to quickly determine the number of days since the Unix epoch (dse) when working directly with the configuration files as an administrator.

Which Twitter user are you?
This will tell you which twitter user you are chronologically. For example, a number of 500 means you were the 500th user to create a twitter account.


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