How to read a command than press enter automatically? [closed]
up vote
-2
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In normal case, in order to stop my programm from running I put in command line 'quit' than I press Enter Key.
However I need to make that from a python file.
os.system("echo 'quitn' ")
I use this instruction but my program keep working. It does not stop.
python bash
asked Nov 22 at 12:35
Sony
668
closed as unclear what you're asking by OrangeDog, MisterMiyagi, Socowi, gnat, Goyo Nov 27 at 14:33
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
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up vote
-2
down vote
favorite
In normal case, in order to stop my programm from running I put in command line 'quit' than I press Enter Key.
However I need to make that from a python file.
os.system("echo 'quitn' ")
I use this instruction but my program keep working. It does not stop.
python bash
asked Nov 22 at 12:35
Sony
668
closed as unclear what you're asking by OrangeDog, MisterMiyagi, Socowi, gnat, Goyo Nov 27 at 14:33
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
Do you want to quit the program to exit at a certain point? Then just use sys.exit().
– Ben T.
Nov 22 at 12:39
1
Are you referring to another program (which you did not write) where you want to have your script type inquit?
– usr2564301
Nov 22 at 12:40
@MisterMiyagi it is another program , I use python to launch its execution. I put quit to stop it
– Sony
Nov 22 at 12:52
@usr2564301 yes I need to type 'quit' in my script to running another program that In don't write in my question.
– Sony
Nov 22 at 13:01
@Sony How did you start it from Python?os.system,subprocess.run,subprocess.Popen, ...
– MisterMiyagi
Nov 22 at 13:15
|
show 1 more comment
up vote
-2
down vote
favorite
up vote
-2
down vote
favorite
In normal case, in order to stop my programm from running I put in command line 'quit' than I press Enter Key.
However I need to make that from a python file.
os.system("echo 'quitn' ")
I use this instruction but my program keep working. It does not stop.
python bash
asked Nov 22 at 12:35
Sony
668
In normal case, in order to stop my programm from running I put in command line 'quit' than I press Enter Key.
However I need to make that from a python file.
os.system("echo 'quitn' ")
I use this instruction but my program keep working. It does not stop.
python bash
python bash
asked Nov 22 at 12:35
Sony
668
asked Nov 22 at 12:35
Sony
668
asked Nov 22 at 12:35
Sony
668
asked Nov 22 at 12:35
Sony
668
asked Nov 22 at 12:35
Sony
668
668
closed as unclear what you're asking by OrangeDog, MisterMiyagi, Socowi, gnat, Goyo Nov 27 at 14:33
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
closed as unclear what you're asking by OrangeDog, MisterMiyagi, Socowi, gnat, Goyo Nov 27 at 14:33
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
Do you want to quit the program to exit at a certain point? Then just use sys.exit().
– Ben T.
Nov 22 at 12:39
1
Are you referring to another program (which you did not write) where you want to have your script type inquit?
– usr2564301
Nov 22 at 12:40
@MisterMiyagi it is another program , I use python to launch its execution. I put quit to stop it
– Sony
Nov 22 at 12:52
@usr2564301 yes I need to type 'quit' in my script to running another program that In don't write in my question.
– Sony
Nov 22 at 13:01
@Sony How did you start it from Python?os.system,subprocess.run,subprocess.Popen, ...
– MisterMiyagi
Nov 22 at 13:15
|
show 1 more comment
Do you want to quit the program to exit at a certain point? Then just use sys.exit().
– Ben T.
Nov 22 at 12:39
1
Are you referring to another program (which you did not write) where you want to have your script type inquit?
– usr2564301
Nov 22 at 12:40
@MisterMiyagi it is another program , I use python to launch its execution. I put quit to stop it
– Sony
Nov 22 at 12:52
@usr2564301 yes I need to type 'quit' in my script to running another program that In don't write in my question.
– Sony
Nov 22 at 13:01
@Sony How did you start it from Python?os.system,subprocess.run,subprocess.Popen, ...
– MisterMiyagi
Nov 22 at 13:15
Do you want to quit the program to exit at a certain point? Then just use sys.exit().
– Ben T.
Nov 22 at 12:39
Do you want to quit the program to exit at a certain point? Then just use sys.exit().
– Ben T.
Nov 22 at 12:39
1
1
Are you referring to another program (which you did not write) where you want to have your script type in
quit?– usr2564301
Nov 22 at 12:40
Are you referring to another program (which you did not write) where you want to have your script type in
quit?– usr2564301
Nov 22 at 12:40
@MisterMiyagi it is another program , I use python to launch its execution. I put quit to stop it
– Sony
Nov 22 at 12:52
@MisterMiyagi it is another program , I use python to launch its execution. I put quit to stop it
– Sony
Nov 22 at 12:52
@usr2564301 yes I need to type 'quit' in my script to running another program that In don't write in my question.
– Sony
Nov 22 at 13:01
@usr2564301 yes I need to type 'quit' in my script to running another program that In don't write in my question.
– Sony
Nov 22 at 13:01
@Sony How did you start it from Python?
os.system, subprocess.run, subprocess.Popen, ...– MisterMiyagi
Nov 22 at 13:15
@Sony How did you start it from Python?
os.system, subprocess.run, subprocess.Popen, ...– MisterMiyagi
Nov 22 at 13:15
|
show 1 more comment
2 Answers
2
active
oldest
votes
up vote
1
down vote
accepted
Spawn your child programs using subprocess.Popen. This gives you a wrapper object that serves as a handle to the child.
import subprocess
child = subprocess.Popen(["sleep", "10"], stdin=subprocess.PIPE)
print(child.poll()) # current status of the child - None if still running
# write to the child's stdin
child.stdin.write(b'quitn')
print(child.wait()) # wait until child has shut down
By using Popen(..., stdin=subprocess.PIPE) you create a standing connection the the child's stdin. This can be used for writing via child.stdin.
answered Nov 22 at 13:26
MisterMiyagi
7,2652040
add a comment |
up vote
0
down vote
You don't actually send your "quit n" command to the standard input of the program you want to stop, but for the standard output of your python script.
I am not sure how do you run this program you mentioned but you may read about using pipes to redirect outputs from one app to inputs of another.
answered Nov 22 at 12:40
running.t
2,44311338
I run my program by this way os.system("./toto"), after period of time I stop its running by using os.system("echo 'quitn' ") however this instruction doesn't work
– Sony
Nov 22 at 12:54
add a comment |
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
1
down vote
accepted
Spawn your child programs using subprocess.Popen. This gives you a wrapper object that serves as a handle to the child.
import subprocess
child = subprocess.Popen(["sleep", "10"], stdin=subprocess.PIPE)
print(child.poll()) # current status of the child - None if still running
# write to the child's stdin
child.stdin.write(b'quitn')
print(child.wait()) # wait until child has shut down
By using Popen(..., stdin=subprocess.PIPE) you create a standing connection the the child's stdin. This can be used for writing via child.stdin.
answered Nov 22 at 13:26
MisterMiyagi
7,2652040
add a comment |
up vote
1
down vote
accepted
Spawn your child programs using subprocess.Popen. This gives you a wrapper object that serves as a handle to the child.
import subprocess
child = subprocess.Popen(["sleep", "10"], stdin=subprocess.PIPE)
print(child.poll()) # current status of the child - None if still running
# write to the child's stdin
child.stdin.write(b'quitn')
print(child.wait()) # wait until child has shut down
By using Popen(..., stdin=subprocess.PIPE) you create a standing connection the the child's stdin. This can be used for writing via child.stdin.
answered Nov 22 at 13:26
MisterMiyagi
7,2652040
add a comment |
up vote
1
down vote
accepted
up vote
1
down vote
accepted
Spawn your child programs using subprocess.Popen. This gives you a wrapper object that serves as a handle to the child.
import subprocess
child = subprocess.Popen(["sleep", "10"], stdin=subprocess.PIPE)
print(child.poll()) # current status of the child - None if still running
# write to the child's stdin
child.stdin.write(b'quitn')
print(child.wait()) # wait until child has shut down
By using Popen(..., stdin=subprocess.PIPE) you create a standing connection the the child's stdin. This can be used for writing via child.stdin.
answered Nov 22 at 13:26
MisterMiyagi
7,2652040
Spawn your child programs using subprocess.Popen. This gives you a wrapper object that serves as a handle to the child.
import subprocess
child = subprocess.Popen(["sleep", "10"], stdin=subprocess.PIPE)
print(child.poll()) # current status of the child - None if still running
# write to the child's stdin
child.stdin.write(b'quitn')
print(child.wait()) # wait until child has shut down
By using Popen(..., stdin=subprocess.PIPE) you create a standing connection the the child's stdin. This can be used for writing via child.stdin.
answered Nov 22 at 13:26
MisterMiyagi
7,2652040
answered Nov 22 at 13:26
MisterMiyagi
7,2652040
answered Nov 22 at 13:26
MisterMiyagi
7,2652040
answered Nov 22 at 13:26
MisterMiyagi
7,2652040
7,2652040
add a comment |
add a comment |
up vote
0
down vote
You don't actually send your "quit n" command to the standard input of the program you want to stop, but for the standard output of your python script.
I am not sure how do you run this program you mentioned but you may read about using pipes to redirect outputs from one app to inputs of another.
answered Nov 22 at 12:40
running.t
2,44311338
I run my program by this way os.system("./toto"), after period of time I stop its running by using os.system("echo 'quitn' ") however this instruction doesn't work
– Sony
Nov 22 at 12:54
add a comment |
up vote
0
down vote
You don't actually send your "quit n" command to the standard input of the program you want to stop, but for the standard output of your python script.
I am not sure how do you run this program you mentioned but you may read about using pipes to redirect outputs from one app to inputs of another.
answered Nov 22 at 12:40
running.t
2,44311338
I run my program by this way os.system("./toto"), after period of time I stop its running by using os.system("echo 'quitn' ") however this instruction doesn't work
– Sony
Nov 22 at 12:54
add a comment |
up vote
0
down vote
up vote
0
down vote
You don't actually send your "quit n" command to the standard input of the program you want to stop, but for the standard output of your python script.
I am not sure how do you run this program you mentioned but you may read about using pipes to redirect outputs from one app to inputs of another.
answered Nov 22 at 12:40
running.t
2,44311338
You don't actually send your "quit n" command to the standard input of the program you want to stop, but for the standard output of your python script.
I am not sure how do you run this program you mentioned but you may read about using pipes to redirect outputs from one app to inputs of another.
answered Nov 22 at 12:40
running.t
2,44311338
answered Nov 22 at 12:40
running.t
2,44311338
answered Nov 22 at 12:40
running.t
2,44311338
answered Nov 22 at 12:40
running.t
2,44311338
2,44311338
I run my program by this way os.system("./toto"), after period of time I stop its running by using os.system("echo 'quitn' ") however this instruction doesn't work
– Sony
Nov 22 at 12:54
add a comment |
I run my program by this way os.system("./toto"), after period of time I stop its running by using os.system("echo 'quitn' ") however this instruction doesn't work
– Sony
Nov 22 at 12:54
I run my program by this way os.system("./toto"), after period of time I stop its running by using os.system("echo 'quitn' ") however this instruction doesn't work
– Sony
Nov 22 at 12:54
I run my program by this way os.system("./toto"), after period of time I stop its running by using os.system("echo 'quitn' ") however this instruction doesn't work
– Sony
Nov 22 at 12:54
add a comment |
Do you want to quit the program to exit at a certain point? Then just use sys.exit().
– Ben T.
Nov 22 at 12:39
1
Are you referring to another program (which you did not write) where you want to have your script type in
quit?– usr2564301
Nov 22 at 12:40
@MisterMiyagi it is another program , I use python to launch its execution. I put quit to stop it
– Sony
Nov 22 at 12:52
@usr2564301 yes I need to type 'quit' in my script to running another program that In don't write in my question.
– Sony
Nov 22 at 13:01
@Sony How did you start it from Python?
os.system,subprocess.run,subprocess.Popen, ...– MisterMiyagi
Nov 22 at 13:15