Commands tagged wget (102)

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send raw data (hex written)using UDP to an IP and port
Use it to send raw data to a networked device. Used to interact with relay controller board whose documentation is lost, so use wireshark to sniff the sent data and replayed using the command.

Calculate days on which Friday the 13th occurs
Alter the years in the first brace expansion to select your year range. Modify date format to your liking but leave " %w" at the end.

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" }

Doing some floating point calculations with rounding (e.g. at the 3rd decimal)

Rename files in batch

Extract tar content without leading parent directory
If archive has leading directory level same as archive name and you want to strip it, this command is for you.

Get information about memory modules
To take information about the characteristics of the installed memory modules.

Rename files in batch

Like top but for files
Like top, but for files

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


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