mopac
MOPAC (Molecular Orbital PACkage) is a semiempirical quantum chemistry program based on Dewar and Thiel's NDDO approximation. tldr-pages
On Linux
Linux
Perform calculations according to an input file (.mop, .dat, and .arc)
mopac path/to/input_fileIdentifyRun a minimal working example with HF that writes to the current directory and streams the output file
touch test.out; echo "PM7\n#comment\n\nH 0.95506 0.05781 -0.03133\nF 1.89426 0.05781 -0.03133" >test.mop; mopac test.mop & tail --follow test.outIdentify