How does convox exec “cat - > file.txt” < file.txt work?
I'm trying to understand this shell cmd.
I understand that:
convox exec <pid> is going to execute the following cmd in the container with pid as the ID
< file.txt work redirects the content of file.txt file as input to the convox cmd
> file.txt overwrite the file context with whatever is on the left of that > redirect operator
Then the question is what does that cat - do? How does the content of my local file.txt get passed to the command that is going to run within the container?
bash shell
asked 8 mins ago
JerryJerry
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I'm trying to understand this shell cmd.
I understand that:
convox exec <pid> is going to execute the following cmd in the container with pid as the ID
< file.txt work redirects the content of file.txt file as input to the convox cmd
> file.txt overwrite the file context with whatever is on the left of that > redirect operator
Then the question is what does that cat - do? How does the content of my local file.txt get passed to the command that is going to run within the container?
bash shell
asked 8 mins ago
JerryJerry
1011
New contributor
Jerry 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 |
I'm trying to understand this shell cmd.
I understand that:
convox exec <pid> is going to execute the following cmd in the container with pid as the ID
< file.txt work redirects the content of file.txt file as input to the convox cmd
> file.txt overwrite the file context with whatever is on the left of that > redirect operator
Then the question is what does that cat - do? How does the content of my local file.txt get passed to the command that is going to run within the container?
bash shell
asked 8 mins ago
JerryJerry
1011
New contributor
Jerry 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 understand this shell cmd.
I understand that:
convox exec <pid> is going to execute the following cmd in the container with pid as the ID
< file.txt work redirects the content of file.txt file as input to the convox cmd
> file.txt overwrite the file context with whatever is on the left of that > redirect operator
Then the question is what does that cat - do? How does the content of my local file.txt get passed to the command that is going to run within the container?
bash shell
bash shell
asked 8 mins ago
JerryJerry
1011
New contributor
Jerry is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 8 mins ago
JerryJerry
1011
New contributor
Jerry is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 8 mins ago
JerryJerry
1011
New contributor
Jerry is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 8 mins ago
JerryJerry
1011
asked 8 mins ago
JerryJerry
1011
1011
New contributor
Jerry is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Jerry is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Jerry 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 |
add a comment |
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