tgatoppm
Convert a TrueVision Targa file to a Netpbm image.
TLDR
Convert a TrueVision Targa file to a PPM image
$ tgatoppm [path/to/file.tga] > [path/to/output.ppm]
Dump information from the TGA header to stdout
$ tgatoppm --headerdump [path/to/file.tga] > [path/to/output.ppm]
Write the transparency channel values of the input image to the specified file
$ tgatoppm --alphaout [path/to/transparency_file.pgm] [path/to/file.tga] > [path/to/output.ppm]
Display version
$ tgatoppm -version