SYNOPSIS

opam show [OPTION]... PACKAGES...

DESCRIPTION

This command displays the information block for the selected package(s).

The information block consists of the name of the package, the installed version if this package is installed in the currently selected compiler, the list of available (installable) versions, and a complete description.

opam list can be used to display the list of available packages as well as a short description for each.

ARGUMENTS

PACKAGES

List of package names, with an optional version or constraint, e.g `pkg', `pkg.1.0' or `pkg>=0.5'.

OPTIONS

-f FIELDS, --field=FIELDS

Only display these fields. You can specify multiple fields by separating them with commas.

--raw

Print the raw opam file for this package

--where

Print the location of the opam file used for this package

COMMON OPTIONS

These options are common to all commands.

--color=WHEN (absent=auto)

Colorize the output. WHEN must be `always', `never' or `auto'.

--compat-mode-1.0

Compatibility mode with OPAM 1.0

--criteria=CRITERIA

Specify user preferences for dependency solving for this run. Overrides both $OPAMCRITERIA and $OPAMUPGRADECRITERIA. For details on the supported language, and the external solvers available, see http://opam.ocaml.org/doc/Specifying_Solver_Preferences.html. A general guide to using solver preferences can be found at http://www.dicosmo.org/Articles/usercriteria.pdf. The default value is -count(down),-count(removed),-notuptodate(solution),-count(new) for upgrades, and -count(removed),-notuptodate(request),-count(down),-notuptodate(changed),-count(changed),-notuptodate(solution) otherwise.

--cudf=FILENAME

Debug option: Save the CUDF requests sent to the solver to FILENAME-<n>.cudf.

--debug

Print debug message to stderr. This is equivalent to setting $OPAMDEBUG to "true".

--debug-level=LEVEL

Like `--debug', but allows specifying the debug level (`--debug' sets it to 1). Equivalent to setting $OPAMDEBUG to a positive integer.

--git-version

Print the git version if it exists and exit.

--help[=FMT] (default=pager)

Show this help in format FMT (pager, plain or groff).

--no-base-packages

Do not install base packages (useful for testing purposes). This is equivalent to setting $OPAMNOBASEPACKAGES to a non-empty string.

--no-self-upgrade

OPAM will replace itself with a newer binary found at OPAMROOT/opam if present. This disables this behaviour.

-q, --quiet

Be quiet when installing a new compiler.

--root=ROOT (absent=~/.opam)

Use ROOT as the current root path. This is equivalent to setting $OPAMROOT to ROOT.

--safe

Make sure nothing will be automatically updated or rewritten. Useful for calling from completion scripts, for example. Will fail whenever such an operation is needed ; also avoids waiting for locks, skips interactive questions and overrides the OPAMDEBUG variable.

--solver=CMD

Specify the name of the external dependency solver. The default value is aspcud

--strict

Fail whenever an error is found in a package definition or a configuration file. The default is to continue silently if possible.

--switch=SWITCH

Use SWITCH as the current compiler switch. This is equivalent to setting $OPAMSWITCH to SWITCH.

--use-internal-solver, --no-aspcud

Force use of internal heuristics, even if an external solver is available.

-v, --verbose

Be more verbose. Show output of all sub-commands. This is equivalent to setting $OPAMVERBOSE to "true".

--version

Show version information.

-y, --yes

Disable interactive mode and answer yes to all questions that would otherwise be asked to the user. This is equivalent to setting $OPAMYES to "true".

FURTHER DOCUMENTATION

See https://opam.ocaml.org.

AUTHORS

Thomas Gazagnaire <[email protected]>

Anil Madhavapeddy <[email protected]>

Fabrice Le Fessant <[email protected]>

Frederic Tuong <[email protected]>

Louis Gesbert <[email protected]>

Vincent Bernardoff <[email protected]>

Guillem Rieu <[email protected]>

Roberto Di Cosmo <[email protected]>