54 lines
1.2 KiB
Python
Executable File
54 lines
1.2 KiB
Python
Executable File
#!/usr/bin/env python3
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import locale
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import os
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import subprocess
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if __name__ == "__main__":
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print("*" * 100)
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print(locale.getpreferredencoding())
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print("*" * 100)
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result = subprocess.run(
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['env'],
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capture_output=True,
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)
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result.check_returncode()
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print('return code:', result.returncode)
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print(result.stdout)
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print("*" * 100)
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result = subprocess.run(
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['env'],
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capture_output=True,
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text=True,
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encoding='utf-8',
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)
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result.check_returncode()
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print('return code:', result.returncode)
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print(f"{result.stdout[:100]}******")
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print("*" * 100)
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subprocess.run(
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['env'],
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env={"NAME": "hatter"},
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)
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print("*" * 100)
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my_env = os.environ.copy()
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my_env["NAME"] = "hatter"
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subprocess.run(
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['sleep', '5'],
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env=my_env,
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check=True, # 非 0 返回时抛出异常
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)
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print("*" * 100)
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subprocess.Popen(
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['sleep', '50'],
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stdout=subprocess.DEVNULL,
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stderr=subprocess.DEVNULL,
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preexec_fn=os.setpgrp # 让子进程独立，即使当前脚本挂了它也继续运行
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)
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print("*" * 100)
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