Fingerprint Attack in windows

I am attempting to do/learn a fingerprint attack...

usage: expander.exe < infile > outfile

C:\Users\Dad\Desktop\HashcatGUI_045\hashcat-utils-1.0>rootkit_found.txt my.txt expander.exe

C:\Users\Dad\Desktop\HashcatGUI_045\hashcat-utils-1.0>my.txt rootkit_found.txt expander.exe

C:\Users\Dad\Desktop\HashcatGUI_045\hashcat-utils-1.0>expander.exe rootkit_found.txt my.txt

C:\Users\Dad\Desktop\HashcatGUI_045\hashcat-utils-1.0>expander.exe rootkit_found.txt | my.txt

C:\Users\Dad\Desktop\HashcatGUI_045\hashcat-utils-1.0>expander.exe rootkit_found.txt | sort -u my.txt

ffccc52b393d6a9b366eb7fe3dff9ab5:alibaba
ffcd653d220a1a17dc00e068161af73e:3xpl01t
ffd24a76a6360b650a42f2928f68e7d5:rachel1
ffd3cce710f9bf56f0e37df20bbf6a9b:jumpman
ffd76abbee8905e599752d3d59599128:conn3ct
ffef1b90de9e298352dd29a3d60fef04:Marylou

I have tried all variations that I can think of and have posted the ones above I remember (as I had to reboot my machine) and the only one that works is the last one (expander.exe rootkit_found.txt | sort -u my.txt) but the output is confined to the screen and does not save to file.

The first command rootkit_found.txt my.txt expander.exe opens the rootkit_found.txt file in the Emeditor proggy but does not append the above hashes/passwords.

Can someone give me some advice or point me in the right direction for the correct syntax so that I can save the output to file.

Rab.