Question

我正在尝试使用以下代码捕获我在python脚本中执行的bash行的输出：

<md-autocomplete 
               md-hide-autocomplete-on-enter
               md-items="item in querySearch(searchText)"
               md-item-text="item.name">
     <span md-highlight-text="searchText">{{item.name}} :: {{item.type}}</span>
</md-autocomplete>

这很好但我想改变它，以便将bash代码直接写入这个python脚本（不需要单独的.sh文件）。我知道我可以使用import android.content.Intent; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentActivity; import android.support.v4.app.FragmentManager; import android.support.v4.widget.DrawerLayout; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.support.v7.widget.Toolbar; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.Window; import android.view.WindowManager; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ListView; import android.widget.Toast; import android.support.v4.app.FragmentActivity; import java.util.List; public class MainActivity extends AppCompatActivity implements AdapterView.OnItemClickListener{ private DrawerLayout drawerLayout; private Toolbar toolbar; private ListView listView; private String[] planets; @Override protected void onCreate(Bundle savedInstanceState) { requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN); super.onCreate(savedInstanceState); setContentView(R.layout.activity_main_appbar); toolbar = (Toolbar) findViewById(R.id.app_bar); setSupportActionBar(toolbar); getSupportActionBar().setDisplayShowHomeEnabled(true); NavigationDrawerFragment drawerFragment = (NavigationDrawerFragment) getSupportFragmentManager().findFragmentById(R.id.fragment_navigation_drawer); drawerFragment.setUp(R.id.fragment_navigation_drawer, (DrawerLayout) findViewById(R.id.drawer_layout), toolbar); drawerLayout=(DrawerLayout)findViewById(R.id.drawerLayout); planets=getResources().getStringArray(R.array.planets); listView=(ListView) findViewById(R.id.drawerList); listView.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, planets)); listView.setOnItemClickListener(this); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.menu_main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); //noinspection SimplifiableIfStatement return super.onOptionsItemSelected(item); } public void onItemClick(AdapterView<?> parent, View view, int position, long id) { Toast.makeText(this, planets[position] + " was selected", Toast.LENGTH_LONG).show(); selectItem(position); selectItem2(view); } public void selectItem(int position) { listView.setItemChecked(position, true); setTitle(planets[position]);} public void selectItem2 (View view){ switch (view.getId()) { case 0: Intent intent = new Intent(view.getContext(), physical_fragment.class); startActivityForResult(intent, 0);}} public void setTitle(String title){ getSupportActionBar().setTitle(title); } }从python运行bash代码，但我无法弄清楚如何捕获输出（通常会打印到终端，因为我使用了错误的术语）。有人可以帮忙吗？

我在CentOS上运行python 2.7

Answer 1

subprocess.Popen的第一个参数是参数列表（除非您指定shell=True）。

所以你可以像

那样做你的例子

call_bash = subprocess.Popen(['ssh', 'me@cli.globusonline.org', 'scp me#comp:/~/blah.text ep#comp:/register/'], stdout=subprocess.PIPE)
output = call_bash.communicate()[0]

这将使用ssh和me@cli.globusonline.org两个参数调用scp me#comp:/~/blah.text ep#comp:/register/命令。

捕获在python中运行的bash代码的输出

1 个答案: