If PDF is electronic paper, then pdftk is an electronic staple-remover, hole-punch, binder, secret-decoder-ring, and X-Ray-glasses.
Im folgenden stelle ich alle Programme nur ganz kurz und mit einem typischen Aufruf vor.
"simple-to-use and -install issue-tracking system with command-line, web and e-mail interfaces."
VIM features split windows, and this patch makes it possible to start shells in those windows.
Sub is a model for setting up shell programs that use subcommands, like git or rbenv using bash. Making a sub does not require you to write shell scripts in bash, you can write subcommands in any scripting language you prefer.
signal-cli (formerly textsecure-cli) provides a commandline and dbus interface for WhisperSystems/libsignal-service-java
A command line interface for redmine