Convert markdown table to csv 1mlr --imarkdown --ocsv cat ${file}.md Convert a csv file to markdown 1mlr --icsv --omd cat ${file}.csv

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Hard reset ntp service 1sudo ntpd -q -g -x -n

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Convert bytes to human readable size 1b=10392309 2echo "$b" | numfmt --to=eic

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Uncompress a PDF 1pdftk ${input}.pdf output ${output}.pdf uncompress

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Reformat text for shell input 1printf "%q\n" "${text}"

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Make a QR Code image 1qrencode 'https://play.google.com/store/apps/details?id=org.briarproject.briar.android' -o "${file}".png Make a QR Coded message in the terminal 1qrencode -t ansi "Hello World" Read a QR Code image 1zbarimg ${file} Show wifi QR code (only with Network Manager) 1nmcli device wifi show-password

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Remotely edit a file with vim 1vim scp://${server}/~/${file}

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Combine many recfiles of different types into one 1sed '1i\ ' *.rec > all.rec Combine many recfiles of the same type into one 1recinf -d -t ${type} ${one}.rec > ${all}.rec 2sed '/^%/d' ${one}.rec ${two}.rec > all.rec The strange syntax used by sed only makes sense after using ed

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Get back terminal after ssh freezes remote machine 1<Return>~.

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Edit users in /etc/passwd directly 1sudo vipw You can't edit passwords without strange cyphers. Edit groups in /etc/group directly 1sudo vigr

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