Commands by megrimm (0)

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A bit of privacy in .bash_history
Don't track in history commands starting with whitespace. Moreover ignore duplicates from history. To be set in .bashrc ex. $ export HISTCONTROL=ignoreboth $   echo antani $   history|grep -c antani 0

convert doc to pdf
convert to pdf and many other formats and vise versa to get a list of supported formats, run $ unoconv --show

Generate QR code for a WiFi hotspot
Prompts for network name (SSID) and password, and generates (as qr-wifi.png) a WiFi QR code (e.g. "WIFI:S:mynet;T:WPA;P:mypass;;" for mynet/mypass). Dependencies [sudo apt-get install]: qrencode zenity

Show apps that use internet connection at the moment. (Multi-Language)
for one line per process: $ ss -p | cat for established sockets only: $ ss -p | grep STA for just process names: $ ss -p | cut -f2 -sd\" or $ ss -p | grep STA | cut -f2 -d\"

a function to find the fastest DNS server
http://public-dns.info gives a list of online dns servers. you need to change the country in url (br in this url) with your country code. this command need some time to ping all IP in list.

make directory with current date

print a cpu of a process

Calculate your total world compile time. (Gentoo Distros)
From Gentoo Forum, greetings to rudregues & steveL.

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

increase recursively the modification time for a list of files
Increase the modification date for the files selected with the find command.


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