phone-mnemonic -------------- ``` $ phone-mnemonic -h usage: phone-mnemonic [options...] Read phone numbers on stdin and write all possible mnemonics to stdout -h, --help print this usage text -r, --reverse convert mnemonic to phone number instead -o, --orig print mnemonic followed by space then phone number on each output line Examples: phone-mnemonic coolnums.txt; convert nums.txt to mnemonics, look for one containing the string COOLNUM phone-mnemonic -r -o < coolnums.txt > nums_to_get.txt; reverse but keep original into a file for easy lookup/number finding ```