BusyBox v1.29.3 (2018-11-02 15:37:50 PDT) multi-call binary. Usage: sort [-nrugMcszbdfiokt] [-o FILE] [-k start[.offset][opts][,end[.offset][opts]] [-t CHAR] [FILE]... Sort lines of text -o FILE Output to FILE -c Check whether input is sorted -b Ignore leading blanks -f Ignore case -i Ignore unprintable characters -d Dictionary order (blank or alphanumeric only) -n Sort numbers -g General numerical sort -M Sort month -t CHAR Field separator -k N[,M] Sort by Nth field -r Reverse sort order -s Stable (don't sort ties alphabetically) -u Suppress duplicate lines -z Lines are terminated by NUL, not newline