Bash - Scripting - part 1- sort highest with defaults

#!/bin/bash
#
# highest filename [howmany]
# Print howmany highest-numbered lines in file filename
# The input file is assumed to have lines that sart with numbers
#+Default for howmany is 10.




filename=$1
howmany=${2:-10}

sort -nr $filename | head -$howmany


Results:


# howmany defaults to 10


$ ./highest.sh albumns.txt
22      U2
12      Coldplay
11      Aerosmith
9       Kodaline
9       Jackson Browne
8       21 Pilots
7       Michael Jackson
6       Pitbull
6       Elton John
5       Thirty Seconds to Mars


# howmany ($2) is 5


$ ./highest.sh /auto/home/homeb/d54712/sandbox/scripts/data.d/albumns.txt 5
22      U2
12      Coldplay
11      Aerosmith
9       Kodaline
9       Jackson Browne