如何编写一个打开终端窗口并在其中执行命令的脚本?

如何编写一个打开终端窗口并在其中执行命令的脚本?

当我启动我的 Ubuntu 机器时,我需要运行三个脚本,它们启动我在开发环境中使用的服务。

为此,我手动打开三个终端并输入命令。

有没有办法创建一个脚本,打开三个终端并在每个终端中执行一个命令?(每个命令都应该在单独的终端窗口中,这样我才能看到它们的输出)。

答案1

gnome-terminal -- command

或者

xterm -e command

或者

konsole -e command

相当多

terminal -e command

当命令退出时让终端停留在:

在控制台中有一面--noclose旗帜。

在 xterm 中,有一个-hold标志。

gnome-terminal,转到编辑->个人资料偏好->标题。 点击命令选项卡。选择按住终端从下拉菜单中当命令退出时。您应该为此创建一个新的配置文件并执行

gnome-terminal --window-with-profile=个人资料名称-e命令

答案2

不要使用硬编码gnome-terminalkonsole等等,而是使用替代系统。执行默认终端仿真器的程序是:

x-terminal-emulator

在我的系统上,每次我执行此命令时,它都会打开一个新的 Konsole 实例。

幸运的是,终端似乎支持-e执行命令的选项(我已为konsole和验证过gnome-terminal)。命令后的参数将传递给调用的命令。Bash 拒绝在我的终端中保持打开状态,需要额外的脚本才能获取终端:

#!/bin/sh
"$@"
exec "$SHELL"

如果您已将上一个脚本保存为/home/user/hacky并使其可执行,则可以使用以下命令运行脚本:

x-terminal-emulator -e /home/user/hacky your-script optional arguments here

需要完整路径并且/home/user/hacky必须是可执行的。

我之前尝试在新终端窗口中运行脚本,可以在以下位置找到:修订 #2,那是在我意识到参数可以传递给之前x-terminal-emulator

答案3

2020 年 2 月 17 日更新:这个答案现在可能已经过时了。

考虑单击此链接并使用我的其他答案:打开具有多个选项卡的终端并执行应用程序


协助@nickguletskii 的回答,以及我在他的回答下的评论,并受到@grabantot对我的评论的赞同的启发,这是我喜欢的方式,特别是当我希望终端保持打开状态以便我可以手动使用它时。

例如用法:将其添加到启动程序中非常有用,这样此脚本就会运行,打开终端,在终端中创建并命名一个选项卡,并为您运行命令。或者,您只需将此脚本的符号链接添加到您的桌面即可。我使用这种方法,这样我就可以双击桌面上的一个图标,让它打开一堆终端(带有各种选项卡,根据我要在其中执行的工作命名)和程序来设置我的编程环境,例如,用于日常工作。

这是一个设计的示例,它打开一个选项卡,将其命名为“测试”,然后cd /etc; ls在其中运行简单的命令。$SHELL最后部分强制 shell 保持打开状态,以便您可以查看其输出并继续使用它(我在 Stack Overflow 的其他地方学到了这一点):

gnome-terminal --tab --title="test" --command="bash -c 'cd /etc; ls; $SHELL'"

这是一个更复杂的例子,它在同一个 gnome 终端中打开 3 个单独的选项卡。这正是我的桌面快捷方式所做的,这样我就可以一次打开一堆编程窗口:

gnome-terminal --tab --title="tab 1" --command="bash -c 'cd /etc; ls; $SHELL'" --tab --title="tab 2" --command="bash -c 'cd ~; ls; $SHELL'" --tab --title="tab 3" --command="bash -c 'cd ~/temp3; ls; $SHELL'"

以下是上述命令的详细说明:

  • gnome-terminal= 打开 gnome 终端
  • --tab= 打开一个唯一的标签页来查看下一步
  • --title="tab 1"= 将此选项卡命名为“选项卡 1”
  • --command="bash -c 'cd /etc; ls; $SHELL'"= 运行bash -c 'cd /etc; ls; $SHELL'命令,这是我刚刚作为示例编写的命令;它的作用如下:
  • bash -c说这是一个 bash 命令
  • cd /etc= 将目录更改为“/etc”路径
  • ls= 'l'i't 此目录的内容
  • $SHELL= 这个神秘的提示是保持 shell 打开以便您使用它所必需的。如果您希望 shell 打开,运行命令,然后关闭,只需删除此部分。但是,我希望选项卡保持打开状态,这样我就可以开始编程了。:)
  • 然后我们从制作标签 2 的部分重新开始--tab,然后再制作标签 3。根据自己的喜好进行定制。

截屏:

在此处输入图片描述

答案4

虽然已经晚了近十年,但这是我使用 Python 给出的答案。

下面.gif我从现有终端启动了该程序,并运行屏幕录像机来显示登录时的样子:

戴尔启动.gif

我为这个答案编写了一个 Python 程序。有一些 OP 没有要求但对我有益的额外功能:

  • 在自动启动时运行以设置登录后经常使用的 GUI 应用程序。
  • 打开多个gnome-terminal选项卡。
  • 为终端选项卡分配标题。
  • 将窗口移动到桌面上的首选位置。
  • 在单独的选项卡中打开gedit并查看最后打开的五个文件。

Python程序:

#!/usr/bin/env python
# -*- coding: utf-8 -*-

#==============================================================================
#
#       dellstart - Autostart GUI applications on Dell Fileserver
#
#==============================================================================

'''
CALL:

   dellstart

REQUIRES:

   sudo apt install xdotool
    
'''

from __future__ import print_function           # Must be first import
import os
import time

BASHRC_TIME = 2                                 # Seconds to load ~/.bashrc
WINDOW_TIME = .5                                # Secpmds fpr window to appear

commands = [ 'gnome-terminal &',                # Launch terminal in background
             'sleep '+str(BASHRC_TIME),         # Bash command wait a sec
             'move x y',                        # Move windows to x and/or y
#             'move 2100 1000',                  # triple monitor setup
             'xdotool type "cd ~"',             # Change to home directory
             'xdotool key Return',              # Enter Key
             'xdotool type "./ssh-activity"',   # Suspend after 15 minutes
             'xdotool key Return',              # Enter Key
             'title SSH\ Activity',             # Window title (escape spaces)
             'xdotool key Control_L+Shift_L+T', # Open new terminal tab
             'sleep '+str(BASHRC_TIME),         # Bash command wait a sec
             'xdotool type "cd ~/askubuntu"',   # Change to working directory
             'xdotool key Return',              # Enter Key
             'title Ask\ Ubuntu',               # Window title (escape spaces)
             'gedit',                           # Last 5 files will open up
             'move x y',                        # Move windows to x and/or y
#             'move 3849 2266',                  # triple monitor setup
           ]

""" NOTE: To discover window coordinates, arrange on desktop and type:

        wmctrl -lG
"""

def process_commands(command_list):

    for command in command_list:

        if command.endswith('&'):
            # Launch in background and get window ID opened
            active_pid, active_win = launch_command(command)
            if active_pid == 0:
                print("ERROR launching", command, \
                "Aborting 'dellstart' script")
                exit()

        elif command.startswith('move'):
            move_window(command, active_win)

        elif command.startswith('title'):
            terminal_title(command)

        elif command.startswith('gedit'):
            gedit()

        else:
            run_and_wait(command)


def launch_command(ext_name):
    ''' Launch external command in background and return PID to parent.
        Use for programs requiring more than .2 seconds to run.
    '''

    all_pids = get_pids(ext_name)       # Snapshot current PID list
    all_wins = get_wins(all_pids)       # Snapshot of windows open
    new_pids = all_pids
    new_wins = all_wins
    sleep_count = 0                     # Counter to prevent infinite loops

    os.popen(ext_name)                  # Run command in background

    while new_pids == all_pids:         # Loop until new PID is assigned
        new_pids = get_pids(ext_name)   # Snapshot current PID list
        if sleep_count > 0:             # Don't sleep first time through loop
            time.sleep(.005)            # sleep 5 milliseconds
        sleep_count += 1
        if sleep_count == 1000:         # 10 second time-out
            print('launch_ext_command() ERROR: max sleep count reached')
            print('External command name:',ext_name)
            return 0

    pid_list = list(set(new_pids) - set(all_pids))
    if not len(pid_list) == 1:
        print('launch_command() ERROR: A new PID could not be found')
        return 0, 0

    time.sleep(WINDOW_TIME)             # Give time for window to appear
    new_wins = get_wins(all_pids)       # Snapshot of windows open
    win_list = list(set(new_wins) - set(all_wins))
    if not len(win_list) == 1:
        #print('launch_command() ERROR: New Window ID could not be found')
        #suppress error message because we aren't using window ID at all
        return int(pid_list[0]), 0

    # Return PID of program we just launched in background
    return int(pid_list[0]), int(win_list[0])


def run_and_wait(ext_name):
    ''' Launch external command and wait for it to end.
        Use for programs requiring less than .2 seconds to run.
    '''

    result = os.popen(ext_name).read().strip()
    #print('run_and_wait() command:', ext_name)
    return result


def get_pids(ext_name):
    ''' Return list of PIDs for program name and arguments
        Whitespace output is compressed to single space
    '''
    all_lines = []
    # Just grep up to first space in command line. It was failing on !
    prog_name = ext_name.split(' ',1)[0]
    all_lines = os.popen("ps aux | grep -v grep | grep " + \
                        "'" + prog_name + "'").read().strip().splitlines
    PID = []
    for l in all_lines():
        l = ' '.join(l.split())         # Compress whitespace into single space
        PID.append(int(l.split(' ', 2)[1]))

    return PID


def get_wins(all_pids):
    ''' Return list of all windows open under PID list
        Currently unncessary because we work on active window '''
    windows = []
    for pid in all_pids:
        all_lines = os.popen('xdotool search --pid ' + str(pid)). \
                             read().strip().splitlines
        for l in all_lines():
            windows.append(int(l))

    return windows


def move_window(line, active_win):
    ''' Move window to x y coorindates on Desktop

        If the letter x or y is passed, that dimension remains unchanged eg:

            xdotool getactivewindow windowmove 100 100    # Moves to 100,100
            xdotool getactivewindow windowmove x 100      # Moves to x,100
            xdotool getactivewindow windowmove 100 y      # Moves to 100,y

    '''
    line = ' '.join(line.split())       # Compress whitespace to single space
    x = line.split(' ')[-2]
    y = line.split(' ')[-1]

    # We don't need to pass window ID as last active window defaults
    all_lines = os.popen('xdotool getactivewindow windowmove ' + x + ' ' + y). \
                         read().strip().splitlines
    for l in all_lines():
        print(l)


def terminal_title(new_title):
    ''' Rather awkward calling xdotool which chokes on double quotes and bash
        via python which chokes on backslashes.

        Simple format (if it worked) would be:
            command = r'PS1="${PS1/\\u@\\h: \\w/' + title + '}"'

        The bash function copied from is:
            function termtitle() { PS1="${PS1/\\u@\\h: \\w/$@}"; }

        Reference for xdotool keycodes: 
        https://gitlab.com/cunidev/gestures/-/wikis/xdotool-list-of-key-codes
    '''

    title = new_title.split(' ', 1)[1]   # Strip out leading "title" token

    command = 'xdotool type PS1='
    run_and_wait(command)
    run_and_wait('xdotool key quotedbl')
    command = 'xdotool type $'
    run_and_wait(command)
    run_and_wait('xdotool key braceleft')
    command = 'xdotool type PS1/'
    run_and_wait(command)
    run_and_wait('xdotool key backslash')
    run_and_wait('xdotool key backslash')
    command = 'xdotool type u@'
    run_and_wait(command)
    run_and_wait('xdotool key backslash')
    run_and_wait('xdotool key backslash')
    command = 'xdotool type "h: "'
    run_and_wait(command)
    run_and_wait('xdotool key backslash')
    run_and_wait('xdotool key backslash')
    command = 'xdotool type "w/"'
    run_and_wait(command)
    command = 'xdotool type "' + title + '"'
    run_and_wait(command)
    run_and_wait('xdotool key braceright')
    run_and_wait('xdotool key quotedbl')
    run_and_wait('xdotool key Return')


def gedit():

    last_modified_files = gedit_recent_files()
    command = 'gedit '
    for f in last_modified_files:
        command=command+'"'
        command=command+f
        command=command+'" '
    # Open gedit with last five modfied files
    command=command+' &'
    active_pid, active_win = launch_command(command)
    if active_pid == 0:
        print("ERROR launching", command, \
        "Aborting 'dellstart' script")
        exit()


def gedit_recent_files():
    ''' Get list of gedit 5 most recent files:
    
grep --no-group-separator -B5 'group>gedit' ~/.local/share/recently-used.xbel | sed -n 1~6p | sed 's#  <bookmark href="file:///#/#g' | sed 's/"//g'

/home/rick/python/mmm added=2020-05-02T15:34:55Z modified=2020-11-19T00:43:45Z visited=2020-05-02T15:34:56Z>
/home/rick/python/mserve added=2020-07-26T16:36:09Z modified=2020-11-28T01:57:19Z visited=2020-07-26T16:36:09Z>

    '''
    command = "grep --no-group-separator -B5 'group>gedit' " + \
              "~/.local/share/recently-used.xbel | " + \
              "sed -n 1~6p | sed 's#  <bookmark href=" + '"' + \
              "file:///#/#g' | " + "sed 's/" + '"' + "//g'"

    recent_files = []
    times = []
    all_lines = os.popen(command).read().strip().splitlines
    uniquifier = 1                  # gedit can give all open files same time
    for l in all_lines():
        fname = l.split(' added=', 1)[0]
        trailing = l.split(' added=', 1)[1]
        modified = trailing.split(' modified=', 1)[1]
        modified = modified.split('Z', 1)[0]
        # TODO: 2038
        d = time.strptime(modified, '%Y-%m-%dT%H:%M:%S')
        epoch = time.mktime(d)
        epoch = int(epoch)
        recent_files.append(fname)

        try:
            times.index(epoch)
            # gedit has given multiple files the same modification time
            epoch += uniquifier
            uniquifier += 1
        except:
            pass                    # Not a duplicate time
        times.append(epoch)

    N=5
    top_files = []
    if N > len(times):
        # Less than 5 most recent files in list
        N = len(times)
        if N == 0:
            # No most recent files in list
            return top_files            # return empty list

    # Store list in tmp to retrieve index
    tmp=list(times)
    # Sort list so that largest elements are on the far right
    times.sort()

    #print ('5 most recent from lists and indices')
    for i in range(1, N+1):
        top_files.append(recent_files[tmp.index(times[-i])])

    return top_files


if __name__ == "__main__":

    process_commands(commands)

# end of dellstart

请注意,您可能需要修改BASHRC_TIME系统上的变量以使程序运行得更快。我的系统中运行着许多函数~/.bashrc,您的程序运行速度可能会快得多。

我计划写这篇文章已经很多年了,但直到现在才开始。

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