# pactree > Package dependency tree viewer for pacman. > More information: . - Print the dependency tree of a specific package: `pactree {{package}}` - Print what packages depend on a specific package: `pactree --reverse {{package}}` - Dump dependencies one per line, skipping duplicates: `pactree --unique {{package}}` - Include optional dependencies of a specific package and colorize the output: `pactree --optional --color {{package}}` - Display help: `pactree`