Linux Overview/Development

• The filesystem hierarchy
• tl;dr how-to guide to commands
  • Alt: bropages
  • Alt: cheat
  • Alt: pet
• Use .pam_environment to set environment variables in a cross-shell manner
• thefuck corrects your previous console command
• How to control the proliferation of dotfiles
• (A way-too-big list of tools to make an awesome shell.)
• ip cheat sheat (pdf)
• A check list of things to know about the command line

Development

• direnv - manage environment variables per-project
• fish/xiki - alternative shells
• tmux - remote window management - cheatsheat

Packaging

If you ever want to package something for Linux, Repology covers where.

Web Tools

• crobtab.guru - write cron schedules
• explainshell - explain (long) shell commands

Shell

• Consider an alias like alias q="ls | grep --color -i".
• The history command (history search).
• Process management: & fg bg jobs kill disown nohup (CTRL+C/Z).
• kill -SIGSTOP and kill -SIGCONT for pause/resume.
• pgrep to search for PID by name.
• script to record shell session in file (and cat or less -R to view).
• From less to edit, press v.
• Use type -a not which as the latter is problematic

Alternative Tools

• ncdu (du -smh, df -l)
• nnn - Terminal File Browser

Makefiles

Template:

MAKEFLAGS += --warn-undefined-variables
MAKEFLAGS += --no-builtin-rules

##     help:   This.
.PHONY: help
.DEFAULT: help
help: Makefile
#       Find all double comments and treat them as docstrings
        @echo "make <command>"
        @sed -n 's/^##//p' $<

##     watch:  Hot-reload web-app server.
.PHONY: watch
watch:
#       Build files in case they changed while we were not watching
        $(MAKE) build
        watchman-make -p '*.py' 'Makefile' 'Dockerfile.web' '.dockerignore' -t build


##
##Run make with VERBOSE=1 for additional output.
$(VERBOSE).SILENT:
# Delete targets on failure
.DELETE_ON_ERROR: