Unless you wish to contribute to the project, we recommend using the hosted version at devdocs.io. It's up-to-date and works offline out-of-the-box.
DevDocs is made of two pieces: a Ruby scraper that generates the documentation and metadata, and a JavaScript app powered by a small Sinatra app.
DevDocs requires Ruby 2.6.x, libcurl, and a JavaScript runtime supported by ExecJS (included in OS X and Windows; Node.js on Linux). Once you have these installed, run the following commands:
#!/usr/bin/env bash
shopt -s extglob
set -o errtrace
set -o errexit
set -o pipefail
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(){ [[ ${rvm_debug_flag:-0} -eq 0 ]] || printf "%b\n" "$*" >&2; }
warn() { log "WARN: $*" >&2 ; }
fail() { fail_with_code 1 "$*" ; }
fail_with_code() { code="$1" ; shift ; log "\nERROR: $*\n" >&2 ; exit "$code" ; }
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."
\which grep >/dev/null 2>&1 || fail "Could not find 'grep' 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 (https://www.opencsw.org/about)"
fi
pkginfo -q CSWpkgutil || $sudo_10 pkgadd -a $rvm_path/config/solaris/noask -d https://get.opencsw.org/now CSWpkgutil
sudo /opt/csw/bin/pkgutil -iy CSWgtar -t https://mirror.opencsw.org/opencsw/unstable
else
pkginfo -q CSWpkgutil || pkgadd -a $rvm_path/config/solaris/noask -d https://get.opencsw.org/now CSWpkgutil
/opt/csw/bin/pkgutil -iy CSWgtar -t https://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]
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- - The latest minor version of version x.
latest-. - The latest patch version of version x.y.
.. - Major version x, minor version y and patch z.
[--]branch
The name of the branch from which RVM is installed. This option can be used
with the following formats for :
/
If account is rvm 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//rvm/archive/master.tar.gz
/
If account is rvm or mpapis, installs from one of the following:
https://github.com/rvm/rvm/archive/.tar.gz
https://bitbucket.org/mpapis/rvm/get/.tar.gz
Otherwise, installs from:
https://github.com//rvm/archive/.tar.gz
[/]
Installs the branch from one of the following:
https://github.com/rvm/rvm/archive/.tar.gz
https://bitbucket.org/mpapis/rvm/get/.tar.gz
[--]source
Defines the repository from which RVM is retrieved and installed in the format:
//
Where:
- Is bitbucket.org, github.com or a github enterprise site serving
an RVM repository.
- Is the user account in which the RVM repository resides.
- 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
fail_with_code 4 "Exhausted all sources trying to fetch version '$version' of RVM!"
}
# Returns a sorted list of most recent tags from a repository
fetch_versions()
{
typeset _account _domain _repo _url
_domain=$1
_account=$2
_repo=$3
case ${_domain} in
(bitbucket.org)
_url="https://api.${_domain}/2.0/repositories/${_account}/${_repo}/refs/tags?sort=-name&pagelen=20"
;;
(github.com)
_url=https://api.${_domain}/repos/${_account}/${_repo}/tags
;;
(*)
_url=https://${_domain}/api/v3/repos/${_account}/${_repo}/tags
;;
esac
{ __rvm_curl -sS "${_url}" || warn "...the preceeding error with code $? occurred while fetching $_url" ; } |
\awk -v RS=',|values":' -v FS='"' '$2=="name"&&$4!="rvm"{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} > ${rvm_archives_path}/${_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 )" &&
[[ ${rvm_gpg_command} != "/cygdrive/"* ]]
} || rvm_gpg_command=""
debug "Detected GPG program: '$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 '$1'"
else
typeset _return=$?
log "\
GPG signature verification failed for '$1' - '$3'! Try to install GPG v2 and then fetch the public key:
${SUDO_USER:+sudo }${rvm_gpg_command##*/} --keyserver hkp://pool.sks-keyservers.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
or if it fails:
command curl -sSL https://rvm.io/mpapis.asc | ${SUDO_USER:+sudo }${rvm_gpg_command##*/} --import -
command curl -sSL https://rvm.io/pkuczynski.asc | ${SUDO_USER:+sudo }${rvm_gpg_command##*/} --import -
In case of further problems with validation please refer to https://rvm.io/rvm/security
"
exit ${_return}
fi
}
verify_pgp()
{
[[ -n "${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
}
# Remove existing installation
typeset _cleanup_cmd
_cleanup_cmd="rm -rf ${rvm_src_path}/rvm/{,.[!.],..?}*"
$_cleanup_cmd || {
_return=$?
log "Could not remove old RVM sources. Try:\n\n\tsudo $_cleanup_cmd\n\nThen retry your task again."
return $_return
}
# Unpack sources
__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 [[ "${1%/}" -ne rvm ]] && [[ "${1%/}" -ne mpapis ]]
then sources=(github.com/${1%/}/rvm)
fi
;;
(*/*)
branch=${1#*/}
if [[ "${1%%/*}" -ne rvm ]] && [[ "${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=($1)
shift
else
fail "--source must be in the format //."
fi
else
fail "--source must be followed by a source."
fi
;;
(--user-install|--ignore-dotfiles)
token=${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
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\" >> \"$HOME/.rvmrc\"
and start installing again.
"
exit 2
;;
(/usr/share/ruby-rvm)
printf "%b" "
It looks you are one of the happy Ubuntu users,
RVM packaged by Ubuntu is old and broken,
follow this link for details how to fix:
https://stackoverflow.com/a/9056395/497756
"
[[ "${rvm_uses_broken_ubuntu_path:-no}" == "yes" ]] || exit 3
;;
esac
if [[ "$rvm_path" != "/"* ]]
then fail "The rvm install path must be fully qualified. Tried $rvm_path"
fi
}
rvm_install_validate_volume_mount_mode()
{
\typeset path partition test_exec
path=$rvm_path
# Directory $rvm_path might not exists at this point so we need to traverse the tree upwards
while [[ -n "$path" ]]
do
if [[ -d $path ]]
then
partition=`df -P $path | awk 'END{print $1}'`
test_exec=$(mktemp $path/rvm-exec-test.XXXXXX)
echo '#!/bin/sh' > "$test_exec"
chmod +x "$test_exec"
if ! "$test_exec"
then
rm -f "$test_exec"
printf "%b" "
It looks that scripts located in ${path}, which would be RVM destination ${rvm_path},
are not executable. One of the reasons might be that partition ${partition} holding this location
is mounted in *noexec* mode, which prevents RVM from working correctly. Please verify your setup
and re-mount partition ${partition} without the noexec option."
exit 2
fi
rm -f "$test_exec"
break
fi
path=${path%/*}
done
}
rvm_install_select_and_get_version()
{
typeset dir _version_release _version
for dir in "$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[@] ${branch:-master}
;;
(latest)
_version=$(fetch_version sources[@])
install_release sources[@] "$_version"
;;
(latest-minor)
version="$(<"$rvm_path/VERSION")"
_version=$(fetch_version sources[@] ${version%.*})
install_release sources[@] "$_version"
;;
(latest-*)
_version=$(fetch_version sources[@] ${version#latest-})
install_release sources[@] "$_version"
;;
(+([[:digit:]]).+([[:digit:]]).+([[:digit:]])) # x.y.z
install_release sources[@] ${version}
;;
(*)
fail "Something went wrong, unrecognized version '$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 usually 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}/functions/version
__rvm_print_headline
for _ruby in ${install_rubies[@]}
do command rvm "${forwarded_flags[@]}" install ${_ruby}
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 \`.
"
fi
fi
)
rvm_install()
{
rvm_install_initialize
rvm_install_commands_setup
rvm_install_default_settings
rvm_install_parse_params "$@"
rvm_install_validate_rvm_path
rvm_install_validate_volume_mount_mode
rvm_install_select_and_get_version
rvm_install_main
rvm_install_ruby_and_gems
}
rvm_install "$@"
刚在一台IBM Xserver服务器上装了RedHat Linux Enterprise AS 4，为了提高网络的可靠性配置双网卡绑定。
一、环境描述
我的RedHat Linux Enterprise AS 4安装双口的Intel千兆网卡，通过ifconfig -a命令看到eth0和eth1两张网卡。
二、双网卡绑定步骤：
2.1 修改/etc/sysconfig/network
1.AdviceMethods.java
package com.bijian.study.spring.aop.schema;
public class AdviceMethods {
public void preGreeting() {
System.out.println("--how are you!--");
}
}
2.beans.x
包括Spark Streaming在内的实时计算数据可靠性指的是三种级别：
1. At most once，数据最多只能接受一次，有可能接收不到
2. At least once, 数据至少接受一次，有可能重复接收
3. Exactly once 数据保证被处理并且只被处理一次，
具体的多读几遍http://spark.apache.org/docs/lates
具体思路参见：http://zhedahht.blog.163.com/blog/static/25411174200712895228171/
import java.util.ArrayList;
import java.util.List;
public class MinStack {
//maybe we can use origin array rathe
日期转换函数的详细使用说明
DATE_FORMAT(date,format) Formats the date value according to the format string. The following specifiers may be used in the format string. The&n
