pyenv/libexec/rbenv-help

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#!/usr/bin/env bash
set -e
[ -n "$RBENV_DEBUG" ] && set -x
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print_set_version() {
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echo "<version> should be a string matching a Ruby version known by rbenv."
local versions="$(rbenv-versions --bare)"
if [ -z "$versions" ]; then
echo "There are currently no Ruby versions installed for rbenv."
else
echo "The currently installed Ruby versions are:"
echo "$versions" | sed 's/^/ /'
fi
echo
echo "The special version string 'system' will use your default system Ruby."
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}
case "$1" in
"") echo "usage: rbenv <command> [<args>]
Some useful rbenv commands are:
commands List all commands
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rehash Rehash rbenv shims (run this after installing binaries)
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global Set or show the global Ruby version
local Set or show the local directory-specific Ruby version
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shell Set or show the shell-specific Ruby version
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version Show the current Ruby version
versions List all Ruby versions known by rbenv
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See 'rbenv help <command>' for more information on a specific command.
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For more information, see: https://github.com/sstephenson/rbenv#readme"
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;;
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global) echo "usage: rbenv global <version>
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Sets the global Ruby version. You can override the global version at
any time by setting a directory-specific version with \`rbenv local'
or by setting the RBENV_VERSION environment variable.
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$(print_set_version)"
;;
local) echo "usage: rbenv local <version>
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rbenv local --unset
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Sets the local directory-specific Ruby version by writing the version
name to a file named '.rbenv-version'.
When you run a Ruby command, rbenv will look for an '.rbenv-version'
file in the current directory and each parent directory. If no such
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file is found in the tree, rbenv will use the global Ruby version
specified with \`rbenv global', or the version specified in the
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RBENV_VERSION environment variable.
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$(print_set_version)"
;;
shell) echo "usage: rbenv shell <version>
rbenv shell --unset
Sets a shell-specific Ruby version by setting the 'RBENV_VERSION'
environment variable in your shell. This version overrides both
project-specific versions and the global version.
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$(print_set_version)"
;;
*) echo "No command arguments needed or invalid/undocumented command."
esac