Command Line Interface
Standards
Templating
envsubst using environment variable to fill-in file templates.
Alternatives
Some commands alternative, many found on modern-unix
For HTTP queries from the command line
curlie a mashup between HTTPie and curl
For quick command reference, alternative to man
[cheat](go get -u github.com/cheat/cheat/cmd/cheat)
For monitoring
bottom no lazy install yet
glances in python with a web interface
gtop graphical top
With GUI
gum helper for interactive scripts.
For DNS
Tunelling
frp is probably the best open source alternative to ngrok. See the whole list of alternatives.
Tools
ripgrep alternative to grep ignoring by default hidden and git ignored files.
fzf fuzzy finder for command line