CRYSTAL-ENV(1)   Crystal Compiler Command Line Reference Guide  CRYSTAL-ENV(1)

NAME
       crystal-env - Print environment variables for the Crystal compiler

SYNOPSIS
       crystal env [variables]

DESCRIPTION
       Print Crystal-specific environment variables in a format compatible
       with shell scripts. If one or more variable names are given as
       arguments, it prints only the value of each named variable on its own
       line.

       Variables:

       CRYSTAL_CACHE_DIR
           Please see ENVIRONMENT VARIABLES.

       CRYSTAL_EXEC_PATH
           Please see ENVIRONMENT VARIABLES.

       CRYSTAL_LIBRARY_PATH
           Please see ENVIRONMENT VARIABLES.

       CRYSTAL_PATH
           Please see ENVIRONMENT VARIABLES.

       CRYSTAL_VERSION
           Contains Crystal version.

INFORMATIVE VARIABLES
       These variables expose information about the Crystal compiler and
       cannot be configured externally.

   CRYSTAL_VERSION
       Contains Crystal version.

crystal 1.21.0                    2026-07-23                    CRYSTAL-ENV(1)