一、rvm
1、简介
rvm是一个命令行工具，可以提供一个便捷的多版本ruby环境的管理和切换。
2、安装步骤
1、新建文件：rvm-installer.sh
vi rvm-installer.sh
内容如下
#!/usr/bin/env bash shopt -s extglob
set -o errtrace
set -o errexit rvm_install_initialize()
{
DEFAULT_SOURCES=(github.com/rvm/rvm bitbucket.org/mpapis/rvm) BASH_MIN_VERSION="3.2.25"
if
[[ -n "${BASH_VERSION:-}" &&
"$(\printf "%b" "${BASH_VERSION:-}\n${BASH_MIN_VERSION}\n" | LC_ALL=C \sort -t"." -k1,1n -k2,2n -k3,3n | \head -n1)" != "${BASH_MIN_VERSION}"
]]
then
echo "BASH ${BASH_MIN_VERSION} required (you have $BASH_VERSION)"
exit 1
fi export HOME PS4
export rvm_trace_flag rvm_debug_flag rvm_user_install_flag rvm_ignore_rvmrc rvm_prefix rvm_path PS4="+ \${BASH_SOURCE##\${rvm_path:-}} : \${FUNCNAME[0]:+\${FUNCNAME[0]}()} \${LINENO} > "
} log() { printf "%b\n" "$*"; }
debug(){ [[ ${rvm_debug_flag:-0} -eq 0 ]] || printf "%b\n" "Running($#): $*"; }
fail() { log "\nERROR: $*\n" ; exit 1 ; } rvm_install_commands_setup()
{
\which which >/dev/null 2>&1 || fail "Could not find 'which' command, make sure it's available first before continuing installation."
if
[[ -z "${rvm_tar_command:-}" ]] && builtin command -v gtar >/dev/null
then
rvm_tar_command=gtar
elif
${rvm_tar_command:-tar} --help 2>&1 | GREP_OPTIONS="" \grep -- --strip-components >/dev/null
then
rvm_tar_command="${rvm_tar_command:-tar}"
else
case "$(uname)" in
(OpenBSD)
log "Trying to install GNU version of tar, might require sudo password"
if (( UID ))
then sudo pkg_add -z gtar-1
else pkg_add -z gtar-1
fi
rvm_tar_command=gtar
;;
(Darwin|FreeBSD|DragonFly) # it's not possible to autodetect on OSX, the help/man does not mention all flags
rvm_tar_command=tar
;;
(SunOS)
case "$(uname -r)" in
(5.10)
log "Trying to install GNU version of tar, might require sudo password"
if (( UID ))
then
if \which sudo >/dev/null 2>&1
then sudo_10=sudo
elif \which /opt/csw/bin/sudo >/dev/null 2>&1
then sudo_10=/opt/csw/bin/sudo
else fail "sudo is required but not found. You may install sudo from OpenCSW repository (http://opencsw.org/about)"
fi
pkginfo -q CSWpkgutil || $sudo_10 pkgadd -a $rvm_path/config/solaris/noask -d http://get.opencsw.org/now CSWpkgutil
sudo /opt/csw/bin/pkgutil -iy CSWgtar -t http://mirror.opencsw.org/opencsw/unstable
else
pkginfo -q CSWpkgutil || pkgadd -a $rvm_path/config/solaris/noask -d http://get.opencsw.org/now CSWpkgutil
/opt/csw/bin/pkgutil -iy CSWgtar -t http://mirror.opencsw.org/opencsw/unstable
fi
rvm_tar_command=/opt/csw/bin/gtar
;;
(*)
rvm_tar_command=tar
;;
esac
esac
builtin command -v ${rvm_tar_command:-gtar} >/dev/null ||
fail "Could not find GNU compatible version of 'tar' command, make sure it's available first before continuing installation."
fi
if
[[ " ${rvm_tar_options:-} " != *" --no-same-owner "* ]] &&
$rvm_tar_command --help 2>&1 | GREP_OPTIONS="" \grep -- --no-same-owner >/dev/null
then
rvm_tar_options="${rvm_tar_options:-}${rvm_tar_options:+ }--no-same-owner"
fi
} usage()
{
printf "%b" " Usage rvm-installer [options] [action] Options [[--]version] <version> The version or tag to install. Valid values are: latest - The latest tagged version.
latest-minor - The latest minor version of the current major version.
latest-<x> - The latest minor version of version x.
latest-<x>.<y> - The latest patch version of version x.y.
<x>.<y>.<z> - Major version x, minor version y and patch z. [--]branch <branch> The name of the branch from which RVM is installed. This option can be used
with the following formats for <branch>: <account>/ If account is wayneeseguin or mpapis, installs from one of the following: https://github.com/rvm/rvm/archive/master.tar.gz
https://bitbucket.org/mpapis/rvm/get/master.tar.gz Otherwise, installs from: https://github.com/<account>/rvm/archive/master.tar.gz <account>/<branch> If account is wayneeseguin or mpapis, installs from one of the following: https://github.com/rvm/rvm/archive/<branch>.tar.gz
https://bitbucket.org/mpapis/rvm/get/<branch>.tar.gz Otherwise, installs from: https://github.com/<account>/rvm/archive/<branch>.tar.gz [/]<branch> Installs the branch from one of the following: https://github.com/rvm/rvm/archive/<branch>.tar.gz
https://bitbucket.org/mpapis/rvm/get/<branch>.tar.gz [--]source <source> Defines the repository from which RVM is retrieved and installed in the format: <domain>/<account>/<repo> Where: <domain> - Is bitbucket.org, github.com or a github enterprise site serving
an RVM repository.
<account> - Is the user account in which the RVM repository resides.
<repo> - Is the name of the RVM repository. Note that when using the [--]source option, one should only use the [/]branch format
with the [--]branch option. Failure to do so will result in undefined behavior. --trace Provides debug logging for the installation script.
Actions master - Installs RVM from the master branch at rvm/rvm on github or mpapis/rvm
on bitbucket.org.
stable - Installs RVM from the stable branch a rvm/rvm on github or mpapis/rvm
on bitbucket.org.
help - Displays this output. "
} ## duplication marker 32fosjfjsznkjneuera48jae
__rvm_curl_output_control()
{
if
(( ${rvm_quiet_curl_flag:-0} == 1 ))
then
__flags+=( "--silent" "--show-error" )
elif
[[ " $*" == *" -s"* || " $*" == *" --silent"* ]]
then
# make sure --show-error is used with --silent
[[ " $*" == *" -S"* || " $*" == *" -sS"* || " $*" == *" --show-error"* ]] ||
{
__flags+=( "--show-error" )
}
fi
} ## duplication marker 32fosjfjsznkjneuera48jae
# -S is automatically added to -s
__rvm_curl()
(
__rvm_which curl >/dev/null ||
{
rvm_error "RVM requires 'curl'. Install 'curl' first and try again."
return 200
} typeset -a __flags
__flags=( --fail --location --max-redirs 10 ) [[ "$*" == *"--max-time"* ]] ||
[[ "$*" == *"--connect-timeout"* ]] ||
__flags+=( --connect-timeout 30 --retry-delay 2 --retry 3 ) if [[ -n "${rvm_proxy:-}" ]]
then __flags+=( --proxy "${rvm_proxy:-}" )
fi __rvm_curl_output_control unset curl
__rvm_debug_command \curl "${__flags[@]}" "$@" || return $?
) rvm_error() { printf "ERROR: %b\n" "$*"; }
__rvm_which(){ which "$@" || return $?; true; }
__rvm_debug_command()
{
debug "Running($#): $*"
"$@" || return $?
true
}
rvm_is_a_shell_function()
{
[[ -t 0 && -t 1 ]] || return $?
return ${rvm_is_not_a_shell_function:-0}
} # Searches the tags for the highest available version matching a given pattern.
# fetch_version (github.com/rvm/rvm bitbucket.org/mpapis/rvm) 1.10. -> 1.10.3
# fetch_version (github.com/rvm/rvm bitbucket.org/mpapis/rvm) 1.10. -> 1.10.3
# fetch_version (github.com/rvm/rvm bitbucket.org/mpapis/rvm) 1. -> 1.11.0
# fetch_version (github.com/rvm/rvm bitbucket.org/mpapis/rvm) "" -> 2.0.1
fetch_version()
{
typeset _account _domain _pattern _repo _sources _values _version
_sources=(${!1})
_pattern=$2
for _source in "${_sources[@]}"
do
IFS='/' read -r _domain _account _repo <<< "${_source}"
_version="$(
fetch_versions ${_domain} ${_account} ${_repo} |
GREP_OPTIONS="" \grep "^${_pattern:-}" | tail -n 1
)"
if
[[ -n ${_version} ]]
then
echo "${_version}"
return 0
fi
done
} # Returns a sorted list of all version tags from a repository
fetch_versions()
{
typeset _account _domain _repo _url
_domain=$1
_account=$2
_repo=$3
case ${_domain} in
(bitbucket.org)
_url=https://${_domain}/api/1.0/repositories/${_account}/${_repo}/branches-tags
;;
(github.com)
_url=https://api.${_domain}/repos/${_account}/${_repo}/tags
;; (*)
_url=https://${_domain}/api/v3/repos/${_account}/${_repo}/tags
;;
esac
__rvm_curl -s ${_url} |
\awk -v RS=',' -v FS='"' '$2=="name"{print $4}' |
sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n
} install_release()
{
typeset _source _sources _url _version _verify_pgp
_sources=(${!1})
_version=$2
debug "Downloading RVM version ${_version}"
for _source in "${_sources[@]}"
do
case ${_source} in
(bitbucket.org*)
_url="https://${_source}/get/${_version}.tar.gz"
_verify_pgp="https://${_source}/downloads/${_version}.tar.gz.asc"
;;
(*)
_url="https://${_source}/archive/${_version}.tar.gz"
_verify_pgp="https://${_source}/releases/download/${_version}/${_version}.tar.gz.asc"
;;
esac
get_and_unpack "${_url}" "rvm-${_version}.tgz" "$_verify_pgp" && return
done
return $?
} install_head()
{
typeset _branch _source _sources _url
_sources=(${!1})
_branch=$2
debug "Selected RVM branch ${_branch}"
for _source in "${_sources[@]}"
do
case ${_source} in
(bitbucket.org*)
_url=https://${_source}/get/${_branch}.tar.gz
;;
(*)
_url=https://${_source}/archive/${_branch}.tar.gz
;;
esac
get_and_unpack "${_url}" "rvm-${_branch//\//_}.tgz" && return
done
return $?
} # duplication marker dfkjdjngdfjngjcszncv
# Drop in cd which _doesn't_ respect cdpath
__rvm_cd()
{
typeset old_cdpath ret
ret=0
old_cdpath="${CDPATH}"
CDPATH="."
chpwd_functions="" builtin cd "$@" || ret=$?
CDPATH="${old_cdpath}"
return $ret
} get_package()
{
typeset _url _file
_url="$1"
_file="$2"
log "Downloading ${_url}"
__rvm_curl -sS ${_url} -o ${rvm_archives_path}/${_file} ||
{
_return=$?
case $_return in
# duplication marker lfdgzkngdkjvnfjknkjvcnbjkncvjxbn
(60)
log "
Could not download '${_url}', you can read more about it here:
https://rvm.io/support/fixing-broken-ssl-certificates/
To continue in insecure mode run 'echo insecure >> ~/.curlrc'.
"
;;
# duplication marker lfdgzkngdkjvnfjknkjvcnbjkncvjxbn
(77)
log "
It looks like you have old certificates, you can read more about it here:
https://rvm.io/support/fixing-broken-ssl-certificates/
"
;;
# duplication marker lfdgzkngdkjvnfjknkjvcnbjkncvjxbn
(141)
log "
Curl returned 141 - it is result of a segfault which means it's Curls fault.
Try again and if it crashes more than a couple of times you either need to
reinstall Curl or consult with your distribution manual and contact support.
"
;;
(*)
log "
Could not download '${_url}'.
curl returned status '$_return'.
"
;;
esac
return $_return
}
} # duplication marker flnglfdjkngjndkfjhsbdjgfghdsgfklgg
rvm_install_gpg_setup()
{
export rvm_gpg_command
{
rvm_gpg_command="$( \which gpg2 2>/dev/null )" &&
[[ ${rvm_gpg_command} != "/cygdrive/"* ]]
} ||
rvm_gpg_command="$( \which gpg 2>/dev/null )" ||
rvm_gpg_command=""
debug "Detected GPG program: '$rvm_gpg_command'"
[[ -n "$rvm_gpg_command" ]] || return $?
} # duplication marker rdjgndfnghdfnhgfdhbghdbfhgbfdhbn
verify_package_pgp()
{
if
"${rvm_gpg_command}" --verify "$2" "$1"
then
log "GPG verified '$1'"
else
typeset _ret=$?
log "\
Warning, RVM 1.26.0 introduces signed releases and \
automated check of signatures when GPG software found.
Assuming you trust Michal Papis import the mpapis public \
key (downloading the signatures). GPG signature verification failed for '$1' - '$3'!
try downloading the signatures: ${SUDO_USER:+sudo }${rvm_gpg_command##*/} --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 or if it fails: command curl -sSL https://rvm.io/mpapis.asc | ${SUDO_USER:+sudo }${rvm_gpg_command##*/} --import - the key can be compared with: https://rvm.io/mpapis.asc
https://keybase.io/mpapis
"
exit $_ret
fi
} verify_pgp()
{
[[ -n "${1:-}" ]] ||
{
debug "No PGP url given, skipping."
return 0
} get_package "$1" "$2.asc" ||
{
debug "PGP url given but does not exist: '$1'"
return 0
} rvm_install_gpg_setup ||
{
log "Found PGP signature at: '$1',
but no GPG software exists to validate it, skipping."
return 0
} verify_package_pgp "${rvm_archives_path}/$2" "${rvm_archives_path}/$2.asc" "$1"
} get_and_unpack()
{
typeset _url _file _patern _return _verify_pgp
_url="$1"
_file="$2"
_verify_pgp="$3" get_package "$_url" "$_file" || return $?
verify_pgp "$_verify_pgp" "$_file" || return $? [[ -d "${rvm_src_path}/rvm" ]] || \mkdir -p "${rvm_src_path}/rvm"
__rvm_cd "${rvm_src_path}/rvm" ||
{
_return=$?
log "Could not change directory '${rvm_src_path}/rvm'."
return $_return
} rm -rf ${rvm_src_path}/rvm/*
__rvm_debug_command $rvm_tar_command xzf ${rvm_archives_path}/${_file} ${rvm_tar_options:-} --strip-components 1 ||
{
_return=$?
log "Could not extract RVM sources."
return $_return
}
} rvm_install_default_settings()
{
# Tracing, if asked for.
if
[[ "$*" == *--trace* ]] || (( ${rvm_trace_flag:-0} > 0 ))
then
set -o xtrace
rvm_trace_flag=1
fi # Variable initialization, remove trailing slashes if they exist on HOME
true \
${rvm_trace_flag:=0} ${rvm_debug_flag:=0}\
${rvm_ignore_rvmrc:=0} HOME="${HOME%%+(\/)}" if
(( rvm_ignore_rvmrc == 0 ))
then
for rvmrc in /etc/rvmrc "$HOME/.rvmrc"
do
if
[[ -s "$rvmrc" ]]
then
if
GREP_OPTIONS="" \grep '^\s*rvm .*$' "$rvmrc" >/dev/null 2>&1
then
printf "%b" "
Error: $rvmrc is for rvm settings only.
rvm CLI may NOT be called from within $rvmrc.
Skipping the loading of $rvmrc
"
exit 1
else
source "$rvmrc"
fi
fi
done
fi if
[[ -z "${rvm_path:-}" ]]
then
if
(( UID == 0 ))
then
rvm_user_install_flag=0
rvm_prefix="/usr/local"
rvm_path="${rvm_prefix}/rvm"
else
rvm_user_install_flag=1
rvm_prefix="$HOME"
rvm_path="${rvm_prefix}/.rvm"
fi
fi
if [[ -z "${rvm_prefix}" ]]
then rvm_prefix=$( dirname $rvm_path )
fi # duplication marker kkdfkgnjfndgjkndfjkgnkfjdgn
[[ -n "${rvm_user_install_flag:-}" ]] ||
case "$rvm_path" in
(/usr/local/rvm) rvm_user_install_flag=0 ;;
($HOME/*|/${USER// /_}*) rvm_user_install_flag=1 ;;
(*) rvm_user_install_flag=0 ;;
esac
} rvm_install_parse_params()
{
install_rubies=()
install_gems=()
flags=( ./scripts/install )
forwarded_flags=()
while
(( $# > 0 ))
do
token="$1"
shift
case "$token" in (--trace)
set -o xtrace
rvm_trace_flag=1
flags=( -x "${flags[@]}" "$token" )
forwarded_flags+=( "$token" )
;; (--debug|--quiet-curl)
flags+=( "$token" )
forwarded_flags+=( "$token" )
token=${token#--}
token=${token//-/_}
export "rvm_${token}_flag"=1
printf "%b" "Turning on ${token/_/ } mode.\n"
;; (--path)
if [[ -n "${1:-}" ]]
then
rvm_path="$1"
shift
else
fail "--path must be followed by a path."
fi
;; (--branch|branch) # Install RVM from a given branch
if [[ -n "${1:-}" ]]
then
case "$1" in
(/*)
branch=${1#/}
;;
(*/)
branch=master
if [[ "${1%/}" -ne wayneeseguin ]] && [[ "${1%/}" -ne mpapis ]]
then sources=(github.com/${1%/}/rvm)
fi
;;
(*/*)
branch=${1#*/}
if [[ "${1%%/*}" -ne wayneeseguin ]] && [[ "${1%%/*}" -ne mpapis ]]
then sources=(github.com/${1%%/*}/rvm)
fi
;;
(*)
branch="$1"
;;
esac
shift
else
fail "--branch must be followed by a branchname."
fi
;; (--source|source)
if [[ -n "${1:-}" ]]
then
if [[ "$1" = */*/* ]]
then
sources=($1)
shift
else
fail "--source must be in the format <domain>/<account>/<repo>."
fi
else
fail "--source must be followed by a source."
fi
;; (--user-install|--ignore-dotfiles)
token=${token#--}
token=${token//-/_}
export "rvm_${token}_flag"=1
printf "%b" "Turning on ${token/_/ } mode.\n"
;; (--auto-dotfiles)
flags+=( "$token" )
export "rvm_auto_dotfiles_flag"=1
printf "%b" "Turning on auto dotfiles mode.\n"
;; (--auto)
export "rvm_auto_dotfiles_flag"=1
printf "%b" "Warning, --auto is deprecated in favor of --auto-dotfiles.\n"
;; (--verify-downloads)
if [[ -n "${1:-}" ]]
then
export rvm_verify_downloads_flag="$1"
forwarded_flags+=( "$token" "$1" )
shift
else
fail "--verify-downloads must be followed by level(0|1|2)."
fi
;; (--autolibs=*)
flags+=( "$token" )
export rvm_autolibs_flag="${token#--autolibs=}"
forwarded_flags+=( "$token" )
;; (--without-gems=*|--with-gems=*|--with-default-gems=*)
flags+=( "$token" )
value="${token#*=}"
token="${token%%=*}"
token="${token#--}"
token="${token//-/_}"
export "rvm_${token}"="${value}"
printf "%b" "Installing RVM ${token/_/ }: ${value}.\n"
;; (--version|version)
version="$1"
shift
;; (head|master)
version="head"
branch="master"
;; (stable)
version="latest"
;; (latest|latest-*|+([[:digit:]]).+([[:digit:]]).+([[:digit:]]))
version="$token"
;; (--ruby)
install_rubies+=( ruby )
;; (--ruby=*)
token=${token#--ruby=}
install_rubies+=( ${token//,/ } )
;; (--rails)
install_gems+=( rails )
;; (--gems=*)
token=${token#--gems=}
install_gems+=( ${token//,/ } )
;; (--add-to-rvm-group)
export rvm_add_users_to_rvm_group="$1"
shift
;; (help|usage)
usage
exit 0
;; (*)
usage
exit 1
;; esac
done if (( ${#install_gems[@]} > 0 && ${#install_rubies[@]} == 0 ))
then install_rubies=( ruby )
fi true "${version:=head}"
true "${branch:=master}" if [[ -z "${sources[@]}" ]]
then sources=("${DEFAULT_SOURCES[@]}")
fi rvm_src_path="$rvm_path/src"
rvm_archives_path="$rvm_path/archives"
rvm_releases_url="https://rvm.io/releases"
} rvm_install_validate_rvm_path()
{
case "$rvm_path" in
(*[[:space:]]*)
printf "%b" "
It looks you are one of the happy *space* users(in home dir name),
RVM is not yet fully ready for it, use this trick to fix it: sudo mkdir -p /${USER// /_}.rvm
sudo chown -R \"$USER:\" /${USER// /_}.rvm
echo \"export rvm_path=/${USER// /_}.rvm\" >> \"$HOME/.rvmrc\" and start installing again. "
exit 2
;;
(/usr/share/ruby-rvm)
printf "%b" "
It looks you are one of the happy Ubuntu users,
RVM packaged by Ubuntu is old and broken,
follow this link for details how to fix: http://*.com/a/9056395/497756 "
[[ "${rvm_uses_broken_ubuntu_path:-no}" == "yes" ]] || exit 3
;;
esac if [[ "$rvm_path" != "/"* ]]
then fail "The rvm install path must be fully qualified. Tried $rvm_path"
fi
} rvm_install_select_and_get_version()
{
typeset _version_release for dir in "$rvm_src_path" "$rvm_archives_path"
do
[[ -d "$dir" ]] || mkdir -p "$dir"
done _version_release="${version}"
case "${version}" in
(head)
_version_release="${branch}"
install_head sources[@] ${branch:-master} || exit $?
;; (latest)
install_release sources[@] $(fetch_version sources[@]) || exit $?
;; (latest-minor)
version="$(\cat "$rvm_path/VERSION")"
install_release sources[@] $(fetch_version sources[@] ${version%.*}) || exit $?
;; (latest-*)
install_release sources[@] $(fetch_version sources[@] ${version#latest-}) || exit $?
;; (+([[:digit:]]).+([[:digit:]]).+([[:digit:]])) # x.y.z
install_release sources[@] ${version} || exit $?
;; (*)
fail "Something went wrong, unrecognized version '$version'"
;;
esac
echo "${_version_release}" > "$rvm_path/RELEASE"
} rvm_install_main()
{
[[ -f ./scripts/install ]] ||
{
log "'./scripts/install' can not be found for installation, something went wrong, it usally means your 'tar' is broken, please report it here: https://github.com/rvm/rvm/issues"
return 127
} # required flag - path to install
flags+=( --path "$rvm_path" )
\command bash "${flags[@]}"
} rvm_install_ruby_and_gems()
(
if
(( ${#install_rubies[@]} > 0 ))
then
source ${rvm_scripts_path:-${rvm_path}/scripts}/rvm
source ${rvm_scripts_path:-${rvm_path}/scripts}/version
__rvm_version for _ruby in ${install_rubies[@]}
do command rvm "${forwarded_flags[@]}" install ${_ruby} -j 2
done
# set the first one as default, skip rest
for _ruby in ${install_rubies[@]}
do
rvm "${forwarded_flags[@]}" alias create default ${_ruby}
break
done for _gem in ${install_gems[@]}
do rvm "${forwarded_flags[@]}" all do gem install ${_gem}
done printf "%b" "
* To start using RVM you need to run \`source $rvm_path/scripts/rvm\`
in all your open shell windows, in rare cases you need to reopen all shell windows.
" if
[[ "${install_gems[*]}" == *"rails"* ]]
then
printf "%b" "
* To start using rails you need to run \`rails new <project_dir>\`.
"
fi
fi
) rvm_install()
{
rvm_install_initialize
rvm_install_commands_setup
rvm_install_default_settings
rvm_install_parse_params "$@"
rvm_install_validate_rvm_path
rvm_install_select_and_get_version
rvm_install_main
rvm_install_ruby_and_gems
} rvm_install "$@"
2、执行如下命令，进行安装
chmod +x rvm-installer.sh
./rvm-installer.sh
3、刷新rvm命令
source /etc/profile.d/rvm.sh
4、安装完毕
二、rubygems
1、简介：
RubyGems（简称 gems）是一个用于对 Ruby组件进行打包的 Ruby 打包系统。 它提供一个分发 Ruby 程序和库的标准格式，还提供一个管理程序包安装的工具。
RubyGems的功能类似于Linux下的apt-get。使用它可以方便第从远程服务器下载并安装Rails。
参考：https://rubygems.org/pages/download
2、安装步骤：
介绍两种安装方式
方式1：通过yum安装
yum install rubygems
方式2：源码安装
资源下载：rubygems-2.4.6.tgz
https://rubygems.org/pages/download
安装
tar –zxvf rubygems-2.4.6.tgz
cd rubygems-2.4.6
ruby setup.rb
三、rake
1、简介
Rake的意思是Ruby Make，一个用ruby开发的代码构建工具。
2、安装步骤
介绍两种安装方式
方式1：通过gem安装
执行如下命令，即可完成安装
gem install rake
方式2：源码安装
资源下载：rake-0.8.7.tgz
安装
tar -zxvf rake-0.8.7.tgz
cd ake-0.8.7
ruby install.rb
