How do I get the prompt back when running `at' from terminal
Perhaps this is more of a general question on scripting and terminal use than of the use of the `at' command. Regardless, I am exploring the use of the at command to get a handle on its behavior and how I can control it before I use it for a serious script.
I wrote a trivial script named at-test.sh, saved it to $HOME and made it executable:
#!/bin/sh
echo $(date +%H:%M:%s) > /dev/pts/9
exit 0
then ran it via
at -f './at-test.sh' now + 1 minutes
It runs as expected, but I must Ctrl+C to get the shell prompt back. I later learned that the Enter key would work also to get the prompt back.
Is there anyway to get the prompt back via a command in the script?
shell-script terminal at
asked 1 hour ago
cdaaawgcdaaawg
62
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Perhaps this is more of a general question on scripting and terminal use than of the use of the `at' command. Regardless, I am exploring the use of the at command to get a handle on its behavior and how I can control it before I use it for a serious script.
I wrote a trivial script named at-test.sh, saved it to $HOME and made it executable:
#!/bin/sh
echo $(date +%H:%M:%s) > /dev/pts/9
exit 0
then ran it via
at -f './at-test.sh' now + 1 minutes
It runs as expected, but I must Ctrl+C to get the shell prompt back. I later learned that the Enter key would work also to get the prompt back.
Is there anyway to get the prompt back via a command in the script?
shell-script terminal at
asked 1 hour ago
cdaaawgcdaaawg
62
New contributor
cdaaawg is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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That's odd.atshould immediately go to the background. What version ofatis this (at -V)? What operating system? If Enter works, what else do you need?
– terdon♦
1 hour ago
@terdon - at version 3.1.14 running on LinuxMint 17. I just read this [link] (unix.stackexchange.com/a/4230/340857) which is exactly what is happening. I guess it is of no consequence really, I just thought it was odd behavior. My ultimate plan is to use it to end public computer sessions by timing out, then forcing logoff, so that behavior is probably ok.
– cdaaawg
1 hour ago
add a comment |
Perhaps this is more of a general question on scripting and terminal use than of the use of the `at' command. Regardless, I am exploring the use of the at command to get a handle on its behavior and how I can control it before I use it for a serious script.
I wrote a trivial script named at-test.sh, saved it to $HOME and made it executable:
#!/bin/sh
echo $(date +%H:%M:%s) > /dev/pts/9
exit 0
then ran it via
at -f './at-test.sh' now + 1 minutes
It runs as expected, but I must Ctrl+C to get the shell prompt back. I later learned that the Enter key would work also to get the prompt back.
Is there anyway to get the prompt back via a command in the script?
shell-script terminal at
asked 1 hour ago
cdaaawgcdaaawg
62
New contributor
cdaaawg is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Perhaps this is more of a general question on scripting and terminal use than of the use of the `at' command. Regardless, I am exploring the use of the at command to get a handle on its behavior and how I can control it before I use it for a serious script.
I wrote a trivial script named at-test.sh, saved it to $HOME and made it executable:
#!/bin/sh
echo $(date +%H:%M:%s) > /dev/pts/9
exit 0
then ran it via
at -f './at-test.sh' now + 1 minutes
It runs as expected, but I must Ctrl+C to get the shell prompt back. I later learned that the Enter key would work also to get the prompt back.
Is there anyway to get the prompt back via a command in the script?
shell-script terminal at
shell-script terminal at
asked 1 hour ago
cdaaawgcdaaawg
62
New contributor
cdaaawg is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 1 hour ago
cdaaawgcdaaawg
62
New contributor
cdaaawg is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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edited 1 hour ago
cdaaawg
asked 1 hour ago
cdaaawgcdaaawg
62
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cdaaawg is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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asked 1 hour ago
cdaaawgcdaaawg
62
asked 1 hour ago
cdaaawgcdaaawg
62
62
New contributor
cdaaawg is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
cdaaawg is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
cdaaawg is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
That's odd.atshould immediately go to the background. What version ofatis this (at -V)? What operating system? If Enter works, what else do you need?
– terdon♦
1 hour ago
@terdon - at version 3.1.14 running on LinuxMint 17. I just read this [link] (unix.stackexchange.com/a/4230/340857) which is exactly what is happening. I guess it is of no consequence really, I just thought it was odd behavior. My ultimate plan is to use it to end public computer sessions by timing out, then forcing logoff, so that behavior is probably ok.
– cdaaawg
1 hour ago
add a comment |
That's odd.atshould immediately go to the background. What version ofatis this (at -V)? What operating system? If Enter works, what else do you need?
– terdon♦
1 hour ago
@terdon - at version 3.1.14 running on LinuxMint 17. I just read this [link] (unix.stackexchange.com/a/4230/340857) which is exactly what is happening. I guess it is of no consequence really, I just thought it was odd behavior. My ultimate plan is to use it to end public computer sessions by timing out, then forcing logoff, so that behavior is probably ok.
– cdaaawg
1 hour ago
That's odd.
at should immediately go to the background. What version of at is this (at -V)? What operating system? If Enter works, what else do you need?– terdon♦
1 hour ago
That's odd.
at should immediately go to the background. What version of at is this (at -V)? What operating system? If Enter works, what else do you need?– terdon♦
1 hour ago
@terdon - at version 3.1.14 running on LinuxMint 17. I just read this [link] (unix.stackexchange.com/a/4230/340857) which is exactly what is happening. I guess it is of no consequence really, I just thought it was odd behavior. My ultimate plan is to use it to end public computer sessions by timing out, then forcing logoff, so that behavior is probably ok.
– cdaaawg
1 hour ago
@terdon - at version 3.1.14 running on LinuxMint 17. I just read this [link] (unix.stackexchange.com/a/4230/340857) which is exactly what is happening. I guess it is of no consequence really, I just thought it was odd behavior. My ultimate plan is to use it to end public computer sessions by timing out, then forcing logoff, so that behavior is probably ok.
– cdaaawg
1 hour ago
add a comment |
1 Answer
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You've successfully submitted the at job and it has successfully printed the date to (your) terminal at /dev/pts/9. You also have a shell there that has printed a prompt and is duly waiting for your input.
This is a simulation of what happened:
your-prompt-here$ at -f './at-test.sh' now + 1 minutes
job 1 at Fri Mar 8 20:13:00 2019
your-prompt-here$
... one minute passes; resume the demonstration
your-prompt-here$ 20:14:1552093897
echo I am still here
I am still here
your-prompt-here$
As you can see, my shell accepted the echo command; my cursor simply wasn't where I "expected" it to be because the at job scribbled onto my terminal.
answered 1 hour ago
Jeff SchallerJeff Schaller
43.1k1159137
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1 Answer
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votes
You've successfully submitted the at job and it has successfully printed the date to (your) terminal at /dev/pts/9. You also have a shell there that has printed a prompt and is duly waiting for your input.
This is a simulation of what happened:
your-prompt-here$ at -f './at-test.sh' now + 1 minutes
job 1 at Fri Mar 8 20:13:00 2019
your-prompt-here$
... one minute passes; resume the demonstration
your-prompt-here$ 20:14:1552093897
echo I am still here
I am still here
your-prompt-here$
As you can see, my shell accepted the echo command; my cursor simply wasn't where I "expected" it to be because the at job scribbled onto my terminal.
answered 1 hour ago
Jeff SchallerJeff Schaller
43.1k1159137
add a comment |
You've successfully submitted the at job and it has successfully printed the date to (your) terminal at /dev/pts/9. You also have a shell there that has printed a prompt and is duly waiting for your input.
This is a simulation of what happened:
your-prompt-here$ at -f './at-test.sh' now + 1 minutes
job 1 at Fri Mar 8 20:13:00 2019
your-prompt-here$
... one minute passes; resume the demonstration
your-prompt-here$ 20:14:1552093897
echo I am still here
I am still here
your-prompt-here$
As you can see, my shell accepted the echo command; my cursor simply wasn't where I "expected" it to be because the at job scribbled onto my terminal.
answered 1 hour ago
Jeff SchallerJeff Schaller
43.1k1159137
add a comment |
You've successfully submitted the at job and it has successfully printed the date to (your) terminal at /dev/pts/9. You also have a shell there that has printed a prompt and is duly waiting for your input.
This is a simulation of what happened:
your-prompt-here$ at -f './at-test.sh' now + 1 minutes
job 1 at Fri Mar 8 20:13:00 2019
your-prompt-here$
... one minute passes; resume the demonstration
your-prompt-here$ 20:14:1552093897
echo I am still here
I am still here
your-prompt-here$
As you can see, my shell accepted the echo command; my cursor simply wasn't where I "expected" it to be because the at job scribbled onto my terminal.
answered 1 hour ago
Jeff SchallerJeff Schaller
43.1k1159137
You've successfully submitted the at job and it has successfully printed the date to (your) terminal at /dev/pts/9. You also have a shell there that has printed a prompt and is duly waiting for your input.
This is a simulation of what happened:
your-prompt-here$ at -f './at-test.sh' now + 1 minutes
job 1 at Fri Mar 8 20:13:00 2019
your-prompt-here$
... one minute passes; resume the demonstration
your-prompt-here$ 20:14:1552093897
echo I am still here
I am still here
your-prompt-here$
As you can see, my shell accepted the echo command; my cursor simply wasn't where I "expected" it to be because the at job scribbled onto my terminal.
answered 1 hour ago
Jeff SchallerJeff Schaller
43.1k1159137
answered 1 hour ago
Jeff SchallerJeff Schaller
43.1k1159137
answered 1 hour ago
Jeff SchallerJeff Schaller
43.1k1159137
answered 1 hour ago
Jeff SchallerJeff Schaller
43.1k1159137
43.1k1159137
add a comment |
add a comment |
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That's odd.
atshould immediately go to the background. What version ofatis this (at -V)? What operating system? If Enter works, what else do you need?– terdon♦
1 hour ago
@terdon - at version 3.1.14 running on LinuxMint 17. I just read this [link] (unix.stackexchange.com/a/4230/340857) which is exactly what is happening. I guess it is of no consequence really, I just thought it was odd behavior. My ultimate plan is to use it to end public computer sessions by timing out, then forcing logoff, so that behavior is probably ok.
– cdaaawg
1 hour ago