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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" }

Stream audio over ssh
This one doesn't need to convert to wav.

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

find all active IP addresses in a network
I just added the args [arp-scan --localnet] which works for Debian users, because the package 'arp' has name 'arp-scan', and it doesn't works with the argument 'arp'.

list files recursively by size

Extract tarball from internet without local saving

Send an http HEAD request w/curl

Show word-by-word differences between two latex files, in color

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

Recursively find disk usage, sort, and make human readable (for systems without human-readable sort command)
Recursively find disk usage, sort, and make human readable: * For systems without human-readable sort command * awk, not perl


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