Commands by raz (1)

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list block devices
Shows all block devices in a tree with descruptions of what they are.

Automatically find and re-attach to a detached screen session
-RR option is used to resume the first appropriate detached screen session

relabel current konsole tab
usage: renam in a script you must replace $PPID with $(awk '{print $4}' /prod/$PPID/stat)

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

Convert seconds to [DD:][HH:]MM:SS
Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

Convert number of bytes to human readable filesize
Converts a number of bytes provided as input, to a human readable number.

list block devices
Shows all block devices in a tree with descruptions of what they are.

Convert images to a multi-page pdf
The linux package imagmagick is required for this command

Mortality Countdown
watch the seconds of your life tick away - replace YYYY-mm-dd HH:MM:ss w/ your birthtime.

Encode png's into blu-ray format
This command takes a set of images (from a render, for example), and converts them into a format conforming to the Blu-ray spec, or at least the version on the Wikipedia page.


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