我正在跟随Ryan的RailsCast Episode 339。我已经安装了rbenv并可以运行ruby -v
。我退出了会话,当我试图重新进入(通过从root
转到su deployer
),我遇到了这个错误:
/home/deployer/.rbenv/bin/rbenv: line 20: cd: /root: Permission denied
这是 rbenv
文件:
#!/usr/bin/env bash
set -e
[ -n "$RBENV_DEBUG" ] && set -x
resolve_link() {
$(type -p greadlink readlink | head -1) "$1"
}
abs_dirname() {
local cwd="$(pwd)"
local path="$1"
while [ -n "$path" ]; do
cd "${path%/*}"
local name="${path##*/}"
path="$(resolve_link "$name" || true)"
done
pwd
cd "$cwd"
}
if [ -z "${RBENV_ROOT}" ]; then
RBENV_ROOT="${HOME}/.rbenv"
else
RBENV_ROOT="${RBENV_ROOT%/}"
fi
export RBENV_ROOT
if [ -z "${RBENV_DIR}" ]; then
RBENV_DIR="$(pwd)"
else
cd "$RBENV_DIR" 2>/dev/null || {
echo "rbenv: cannot change working directory to \`$RBENV_DIR'"
exit 1
} >&2
RBENV_DIR="$(pwd)"
cd "$OLDPWD"
fi
export RBENV_DIR
shopt -s nullglob
bin_path="$(abs_dirname "$0")"
for plugin_bin in "${RBENV_ROOT}/plugins/"*/bin; do
bin_path="${bin_path}:${plugin_bin}"
done
export PATH="${bin_path}:${PATH}"
hook_path="${RBENV_HOOK_PATH}:${RBENV_ROOT}/rbenv.d:/usr/local/etc/rbenv.d:/etc/rbenv.d:/usr/lib/rbenv/hooks"
for plugin_hook in "${RBENV_ROOT}/plugins/"*/etc/rbenv.d; do
hook_path="${hook_path}:${plugin_hook}"
done
export RBENV_HOOK_PATH="$hook_path"
shopt -u nullglob
command="$1"
case "$command" in
"" | "-h" | "--help" )
echo -e "rbenv 0.3.0\n$(rbenv-help)" >&2
;;
* )
command_path="$(command -v "rbenv-$command" || true)"
if [ -z "$command_path" ]; then
echo "rbenv: no such command \`$command'" >&2
exit 1
fi
shift 1
exec "$command_path" "$@"
;;
esac
第20行是cd "$cwd"
当我试图回到会话时,有什么想法,为什么会出现这个错误?
/root
目录下,因为我认为deployer用户应该可以访问该目录,毕竟deployer用户属于管理员组。但是你说得也没错,简单切换目录后,我就能够正确地使用su
命令了。如果你想把这个作为答案,我会接受的。谢谢。 - Tyler DeWitt