ubuntu系统怎么开机自启动expect文件

要在Ubuntu系统中设置一个expect文件开机自启动，可以按照以下步骤进行操作：

1. 以管理员身份打开终端，并输入以下命令：

sudo nano /etc/rc.local

2. 在打开的文件中添加以下内容，注意替换为你的expect文件路径和名称：

/path/to/expect/script.exp &

3. 保存并退出文件，然后输入以下命令使其可执行：

sudo chmod +x /etc/rc.local

4. 最后，重新启动系统，expect文件应该会自动运行。

请注意，这种方法只适用于较早版本的Ubuntu系统。在较新版的Ubuntu系统中，建议使用systemd服务来设置自启动。

相关问题

ubuntu下的expect文件怎么开机自启动

要让一个expect脚本在Ubuntu开机时自动运行，可以使用以下步骤：

1. 将expect脚本复制到 `/etc/init.d/` 目录中。

2. 在 `/etc/init.d/` 目录中创建一个新文件，例如 `myscript`，并将以下内容复制粘贴到文件中：

#!/bin/bash
### BEGIN INIT INFO
# Provides: myscript
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start myscript at boot time
# Description: Enable service provided by myscript.
### END INIT INFO

# Author: Your Name

# Do NOT "set -e"

# PATH should only include /usr/* if it runs after the mountnfs.sh script
PATH=/usr/sbin:/usr/bin:/sbin:/bin
DESC="Description of the service"
NAME=myscript
DAEMON=/usr/sbin/$NAME
DAEMON_ARGS="--options args"
PIDFILE=/var/run/$NAME.pid
SCRIPTNAME=/etc/init.d/$NAME
# Exit if the package is not installed
[ -x "$DAEMON" ] || exit 0
# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME
# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh
# Define LSB log_* functions.
# Depend on lsb-base (>= 3.2-14) to ensure that this file is present.
. /lib/lsb/init-functions
#
# Function that starts the daemon/service
#
do_start()
{
  # Return
  #   0 if daemon has been started
  #   1 if daemon was already running
  #   2 if daemon could not be started
  start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON --test > /dev/null \
    || return 1
  start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON -- \
    $DAEMON_ARGS \
    || return 2
  # Add code here, if necessary, that waits for the process to be ready
  # to handle requests from services started subsequently which depend
  # on this one.  As a last resort, sleep for some time.
}
#
# Function that stops the daemon/service
#
do_stop()
{
  # Return
  #   0 if daemon has been stopped
  #   1 if daemon was already stopped
  #   2 if daemon could not be stopped
  #   other if a failure occurred
  start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --name $NAME
  RETVAL="$?"
  [ "$RETVAL" = 2 ] && return 2
  # Wait for children to finish too if this is a daemon that forks
  # and if the daemon is only ever run from this initscript.
  # If the above conditions are not satisfied then add some other code
  # that waits for the process to drop all resources that could be
  # needed by services started subsequently.  A last resort is to
  # sleep for some time.
  start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --exec $DAEMON
  [ "$?" = 2 ] && return 2
  # Many daemons don't delete their pidfiles when they exit.
  rm -f $PIDFILE
  return "$RETVAL"
}
#
# Function that sends a SIGHUP to the daemon/service
#
do_reload() {
  #
  # If the daemon can reload its configuration without
  # restarting (for example, when it is sent a SIGHUP),
  # then implement that here.
  #
  start-stop-daemon --stop --signal 1 --quiet --pidfile $PIDFILE --name $NAME
  return 0
}
case "$1" in
  start)
    [ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
    do_start
    case "$?" in
      0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
      2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
    esac
    ;;
  stop)
    [ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
    do_stop
    case "$?" in
      0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
      2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
    esac
    ;;
  status)
    status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
    ;;
  #reload|force-reload)
    #
    # If do_reload() is not implemented then leave this commented out
    # and leave 'force-reload' as an alias for 'restart'.
    #
    #log_daemon_msg "Reloading $DESC" "$NAME"
    #do_reload
    #log_end_msg $?
    #;;
  restart|force-reload)
    #
    # If the "reload" option is implemented then remove the
    # 'force-reload' alias
    #
    log_daemon_msg "Restarting $DESC" "$NAME"
    do_stop
    case "$?" in
      0|1)
        do_start
        case "$?" in
          0) log_end_msg 0 ;;
          1) log_end_msg 1 ;; # Old process is still running
          *) log_end_msg 1 ;; # Failed to start
        esac
        ;;
      *)
        # Failed to stop
        log_end_msg 1
        ;;
    esac
    ;;
  *)
    #echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload}" >&2
    echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
    exit 3
    ;;
esac

exit 0

3. 修改以下变量的值：

- `DESC` - 服务的描述
- `NAME` - expect脚本的名称
- `DAEMON` - expect脚本的路径
- `DAEMON_ARGS` - 如果需要的话，可以指定expect脚本的参数

4. 保存并关闭文件。

5. 运行以下命令来设置脚本文件的权限：

sudo chmod +x /etc/init.d/myscript

6. 运行以下命令来将脚本文件添加到启动序列中：

sudo update-rc.d myscript defaults

现在，expect脚本应该在Ubuntu开机时自动启动了。

ubuntu expect使用

Expect是一个自动化工具，可以用来编写脚本，以通过交互式对话与其它程序进行通信。在 Ubuntu上使用 Expect，可以通过以下步骤进行：

1. 安装 Expect：在终端中输入以下命令进行安装：

   sudo apt-get install expect

2. 编写 Expect 脚本：编写一个脚本文件，例如 `myscript.exp`，包含交互式对话的 Expect 语句。以下是一个简单的示例：

   #!/usr/bin/expect -f
   spawn ssh user@host
   expect "password:"
   send "mypassword\r"
   interact

这个脚本将自动登录到远程主机并输入密码。

3. 运行 Expect 脚本：在终端中输入以下命令以运行脚本：

   expect myscript.exp

如果脚本需要参数，可以将它们添加到命令行中。

以上是使用 Expect 的基本步骤，可以根据需要进行调整和修改。