| Код |
import subprocess
cmd = str(subprocess.check_output(["ps", "-Al", "|", "grep", "-c", "chromium"], text=True))
print(type(cmd))
print(cmd)
|
Пишет ошибку:
| Код |
error: unsupported SysV option
Usage:
ps [options]
Try 'ps --help <simple|list|output|threads|misc|all>'
or 'ps --help <s|l|o|t|m|a>'
for additional help text.
For more details see ps(1).
Traceback (most recent call last):
File "/media/sf_soft/vsc/x.py", line 3, in <module>
cmd = str(subprocess.check_output(["ps", "-Al |", "grep", "-c", "chromium"], text=True))
File "/usr/lib/python3.10/subprocess.py", line 421, in check_output
return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
File "/usr/lib/python3.10/subprocess.py", line 526, in run
raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['ps', '-Al', '|', 'grep', '-c', 'chromium']' returned non-zero exit status 1.
|
Как написать правильно? Опция "text=True" обязательна. |