Versatile Commodore Emulator
VICE is an emulator collection which emulates the C64, the C64-DTV, the C128, the VIC20, practically all PET models, the PLUS4 and the CBM-II (aka C610). It runs on Unix, MS-DOS, Win32, OS/2, Acorn RISC OS, BeOS, QNX 6.x, Amiga, GP2X or Mac OS X machines.
Highly portable CD/DVD/BluRay command line recording software
cdrecord: A CD/DVD/BD recording program readcd: A program to read CD/DVD/BD media with CD-clone features cdda2wav: The most evolved CD-audio extraction program with paranoia support mkisofs: A program to create hybrid ISO9660/Joliet/HFS filesystems with optional Rock Ridge attributes isodebug: A program to print mkisofs debug information from media isodump: A program to dump ISO-9660 media isoinfo: A program to analyse/verify ISO/9660/Joliet/Rock-Ridge Filesystems isovfy: A program to verify the ISO-9660 structures rscsi: A Remote SCSI enabling daemon
Command validation tool
cmdok checks that specified commands are OK. If command is OK than it exists in PATH and can be run. It is a simple, small and portable Bash script. It is useful in software packages that want to check that some commands exist before trying to run them. See wiki for more information and examples.