Knowing when bash is done running a command through a FIFO pipe
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I'm trying to link a web-based terminal with bash.
My current attempt to do so is spawning a shell pointing a FIFO pipe to its input, like this:
Terminal 1
$ mkfifo pipe
$ bash <> pipe
Hello World!
Terminal 2
$ echo "Hello World!" > pipe
As you might be able to tell, I am only getting command responses from spawning the shell in Terminal 1 (obviously). Is it possible for me to tell if bash is idle or not? I need to know when to show $PS1 on the client side.
If I run something like apt-get install curl -y, the command is continuous and finishes when it finishes. I need to know when it is finished so that on the front-end, I can show the terminal prompt.
Any ideas?
bash pipe fifo
asked 7 mins ago
Kirk122
1
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Kirk122 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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up vote
0
down vote
favorite
I'm trying to link a web-based terminal with bash.
My current attempt to do so is spawning a shell pointing a FIFO pipe to its input, like this:
Terminal 1
$ mkfifo pipe
$ bash <> pipe
Hello World!
Terminal 2
$ echo "Hello World!" > pipe
As you might be able to tell, I am only getting command responses from spawning the shell in Terminal 1 (obviously). Is it possible for me to tell if bash is idle or not? I need to know when to show $PS1 on the client side.
If I run something like apt-get install curl -y, the command is continuous and finishes when it finishes. I need to know when it is finished so that on the front-end, I can show the terminal prompt.
Any ideas?
bash pipe fifo
asked 7 mins ago
Kirk122
1
New contributor
Kirk122 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I'm trying to link a web-based terminal with bash.
My current attempt to do so is spawning a shell pointing a FIFO pipe to its input, like this:
Terminal 1
$ mkfifo pipe
$ bash <> pipe
Hello World!
Terminal 2
$ echo "Hello World!" > pipe
As you might be able to tell, I am only getting command responses from spawning the shell in Terminal 1 (obviously). Is it possible for me to tell if bash is idle or not? I need to know when to show $PS1 on the client side.
If I run something like apt-get install curl -y, the command is continuous and finishes when it finishes. I need to know when it is finished so that on the front-end, I can show the terminal prompt.
Any ideas?
bash pipe fifo
asked 7 mins ago
Kirk122
1
New contributor
Kirk122 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I'm trying to link a web-based terminal with bash.
My current attempt to do so is spawning a shell pointing a FIFO pipe to its input, like this:
Terminal 1
$ mkfifo pipe
$ bash <> pipe
Hello World!
Terminal 2
$ echo "Hello World!" > pipe
As you might be able to tell, I am only getting command responses from spawning the shell in Terminal 1 (obviously). Is it possible for me to tell if bash is idle or not? I need to know when to show $PS1 on the client side.
If I run something like apt-get install curl -y, the command is continuous and finishes when it finishes. I need to know when it is finished so that on the front-end, I can show the terminal prompt.
Any ideas?
bash pipe fifo
bash pipe fifo
asked 7 mins ago
Kirk122
1
New contributor
Kirk122 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 7 mins ago
Kirk122
1
New contributor
Kirk122 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 7 mins ago
Kirk122
1
New contributor
Kirk122 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 7 mins ago
Kirk122
1
asked 7 mins ago
Kirk122
1
1
New contributor
Kirk122 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Kirk122 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Kirk122 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
add a comment |Â
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Kirk122 is a new contributor. Be nice, and check out our Code of Conduct.
Kirk122 is a new contributor. Be nice, and check out our Code of Conduct.
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