Commands by atemvm (5)

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check open ports without netstat or lsof

python smtp server
This command will start a simple SMTP server listening on port 1025 of localhost. This server simply prints to standard output all email headers and the email body.

Create .pdf from .doc
sudo apt-get install wv tetex-extra ghostscript

Calculate N!
Same as the seq/bc solution but without bc.

Parallel mysql dump restore
this command works with one gziped file per table, and restore 4 tables in parallel.

Count the words in any OpenOffice document (including Impress presentations)
OpenOffice, LibreOffice and OO Impress wordcount

Search for in which package the specified file is included.

rot13 simple substitution cipher via command line
E.g. Useful for hiding spoilers in reviews, etc.

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

Backup a filesystem to a remote machine and use cstream to throttle bandwidth of the backup
This command will nicely dump a filesystem to STDOUT, compress it, encrypt it with the gpg key of your choice, throttle the the data stream to 60kb/s and finally use ssh to copy the contents to an image on a remote machine.


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