🖥️opam

➡️This is a command-line reference manual for commands and command combinations that you don’t use often enough to remember it. This cheatsheet explains the opam command with important options and switches using examples.

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▁ ▂ ▃ ▄ ꧁ 🔴☠ COMMANDLINE-KUNGFU WITH CHEATSHEETS ☠🔴꧂▅ ▃ ▂ ▁

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# OPAM is a source-based package manager for OCaml

# Initialize ~/.opam using an already installed OCaml
opam init
opam init --comp 4.02.3
# Initialize with a freshly compiled OCaml 4.02.3

# List all available packages
opam list -a

# List packages with QUERY in their name or description
opam search ${QUERY}

# Display information about PACKAGE
opam show ${PACKAGE}

# Download, build and install the latest version of PACKAGE
# and all its dependencies
opam install ${PACKAGE}

# Update the packages database
opam update

# Bring everything to the latest version possible
opam upgrade

# Command-specific manpage
opam CMD --help

# install static analysis and indentation for ocaml
opam install ocp-indent merlin
# configure editor as recommended in the installation output
# + (for vim) don't forget to add "filetype plugin on" in ~/.vimrc

Cheatsheets are an excellent complement to other information sources like Linux man-pages, Linux help, or How-To’s and tutorials, as they provide compact and easily accessible information. While man-pages and detailed tutorials often contain comprehensive explanations and extensive guides, cheatsheets summarize the most important options forthe command opam in a clear format. This allows users to quickly access the needed information for opam without having to sift through lengthy texts. Especially in stressful situations or for recurring tasks, cheatsheets for opam are a valuable resource to work efficiently and purposefully.

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