What command replaces sudo in Linux?
时间: 2024-05-28 21:12:38 浏览: 21
There is no single command that replaces "sudo" in Linux, but there are several alternatives that can be used depending on your needs. One such alternative is "su" (substitute user), which allows you to switch to another user account with administrative privileges. Another alternative is "pkexec", which allows authorized users to execute a command as another user with administrative privileges. Additionally, some Linux distributions provide their own tools for privilege escalation, such as "doas" on OpenBSD and "dzdo" on some versions of Ubuntu.
相关问题
do me a example for shell command exec usage
Sure, here's an example of using the shell command `exec` in a shell script:
```
#!/bin/bash
# Execute a command and redirect its output to a file
exec ls -l > /tmp/list.txt
# The following command will not be executed
echo "This will not be printed to the console"
```
In this example, the `exec` command is used to run the `ls -l` command and redirect its output to a file named `/tmp/list.txt`. After the `exec` command completes, the script will continue to execute any remaining commands in the script. However, in this case, the `echo` command will not be executed because the `exec` command replaces the current shell process with the `ls` command.
do me a example of exec command usage
Sure, here's an example of how to use the `exec()` function in Python to run a command:
```python
import os
# define the command you want to execute
command = "ls -l"
# use the exec() function to run the command
os.exec(command)
```
In this example, we're using the `os` module to run the `ls -l` command (which lists the files in the current directory with detailed information). The `os.exec()` function replaces the current process with the process created by running the command, so any code after the `os.exec()` call won't be executed.