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Redirecting a command with parameters to a file
Calling an external command in PythonHow to manage a redirect request after a jQuery Ajax callShell command to sum integers, one per line?How do I redirect to another webpage?How do I make a redirect in PHP?How can I redirect and append both stdout and stderr to a file with Bash?How to symlink a file in Linux?How to exclude a directory in find . commandHow can I recursively find all files in current and subfolders based on wildcard matching?How do I find all files containing specific text on Linux?
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;
I have the following command
/home/ec2-user/MyDomain/bin/daphne -b 0.0.0.0 -p 8001 main.asgi:channel_layer
I would like to redirect the console output to a file. I tried doing this
/home/ec2-user/MyDomain/bin/daphne -b 0.0.0.0 -p 8001 main.asgi:channel_layer >> /var/log/access.log
but that does not work. Any suggestions on what I might be doing wrong. Ultimately I would like to start that as a background process using & and log the output to a file
linux shell redirect
edited Mar 24 at 13:22
PSkocik
36.7k65580
asked Mar 23 at 17:42
MistyDMistyD
4,3961677150
add a comment |
I have the following command
/home/ec2-user/MyDomain/bin/daphne -b 0.0.0.0 -p 8001 main.asgi:channel_layer
I would like to redirect the console output to a file. I tried doing this
/home/ec2-user/MyDomain/bin/daphne -b 0.0.0.0 -p 8001 main.asgi:channel_layer >> /var/log/access.log
but that does not work. Any suggestions on what I might be doing wrong. Ultimately I would like to start that as a background process using & and log the output to a file
linux shell redirect
edited Mar 24 at 13:22
PSkocik
36.7k65580
asked Mar 23 at 17:42
MistyDMistyD
4,3961677150
1
The output your seeing is probably stderr (filedescriptor 2).Try 2>>/var/log/access.log
– PSkocik
Mar 23 at 17:43
@PSkocik yes that worked. And to start it in the background simply add & to the proc name ?
– MistyD
Mar 23 at 17:46
After the whole command, yes.
– PSkocik
Mar 23 at 17:47
@PSkocik that worked can you put that as an answer
– MistyD
Mar 23 at 17:51
add a comment |
I have the following command
/home/ec2-user/MyDomain/bin/daphne -b 0.0.0.0 -p 8001 main.asgi:channel_layer
I would like to redirect the console output to a file. I tried doing this
/home/ec2-user/MyDomain/bin/daphne -b 0.0.0.0 -p 8001 main.asgi:channel_layer >> /var/log/access.log
but that does not work. Any suggestions on what I might be doing wrong. Ultimately I would like to start that as a background process using & and log the output to a file
linux shell redirect
edited Mar 24 at 13:22
PSkocik
36.7k65580
asked Mar 23 at 17:42
MistyDMistyD
4,3961677150
I have the following command
/home/ec2-user/MyDomain/bin/daphne -b 0.0.0.0 -p 8001 main.asgi:channel_layer
I would like to redirect the console output to a file. I tried doing this
/home/ec2-user/MyDomain/bin/daphne -b 0.0.0.0 -p 8001 main.asgi:channel_layer >> /var/log/access.log
but that does not work. Any suggestions on what I might be doing wrong. Ultimately I would like to start that as a background process using & and log the output to a file
linux shell redirect
linux shell redirect
edited Mar 24 at 13:22
PSkocik
36.7k65580
asked Mar 23 at 17:42
MistyDMistyD
4,3961677150
edited Mar 24 at 13:22
PSkocik
36.7k65580
asked Mar 23 at 17:42
MistyDMistyD
4,3961677150
edited Mar 24 at 13:22
PSkocik
36.7k65580
edited Mar 24 at 13:22
PSkocik
36.7k65580
edited Mar 24 at 13:22
PSkocik
36.7k65580
36.7k65580
asked Mar 23 at 17:42
MistyDMistyD
4,3961677150
asked Mar 23 at 17:42
MistyDMistyD
4,3961677150
asked Mar 23 at 17:42
MistyDMistyD
4,3961677150
4,3961677150
1
The output your seeing is probably stderr (filedescriptor 2).Try 2>>/var/log/access.log
– PSkocik
Mar 23 at 17:43
@PSkocik yes that worked. And to start it in the background simply add & to the proc name ?
– MistyD
Mar 23 at 17:46
After the whole command, yes.
– PSkocik
Mar 23 at 17:47
@PSkocik that worked can you put that as an answer
– MistyD
Mar 23 at 17:51
add a comment |
1
The output your seeing is probably stderr (filedescriptor 2).Try 2>>/var/log/access.log
– PSkocik
Mar 23 at 17:43
@PSkocik yes that worked. And to start it in the background simply add & to the proc name ?
– MistyD
Mar 23 at 17:46
After the whole command, yes.
– PSkocik
Mar 23 at 17:47
@PSkocik that worked can you put that as an answer
– MistyD
Mar 23 at 17:51
1
1
The output your seeing is probably stderr (filedescriptor 2).Try 2>>/var/log/access.log
– PSkocik
Mar 23 at 17:43
The output your seeing is probably stderr (filedescriptor 2).Try 2>>/var/log/access.log
– PSkocik
Mar 23 at 17:43
@PSkocik yes that worked. And to start it in the background simply add & to the proc name ?
– MistyD
Mar 23 at 17:46
@PSkocik yes that worked. And to start it in the background simply add & to the proc name ?
– MistyD
Mar 23 at 17:46
After the whole command, yes.
– PSkocik
Mar 23 at 17:47
After the whole command, yes.
– PSkocik
Mar 23 at 17:47
@PSkocik that worked can you put that as an answer
– MistyD
Mar 23 at 17:51
@PSkocik that worked can you put that as an answer
– MistyD
Mar 23 at 17:51
add a comment |
1 Answer
1
active
oldest
votes
Error messages that aren't part of a program's primary output should and usually do go to filedescriptor 2 (stderr). To redirect an output filedescriptor N to a file, you need N>the_file (or N>>the_file) (i.e., 2>>the_file to redirect filedescriptor 2`).
When you omit the number, 1 (stdout) is implied for output redirections to a file and 0 for input redirections from a file.
(You can also do descriptor to descriptor redirections (SrcFd>&TargetFd) and/or closes (Fd>&-) and there the direction of the arrow doesn't matter.)
answered Mar 23 at 17:59
PSkocikPSkocik
36.7k65580
so how do I tell it to write 2 and everything else to the file
– MistyD
Mar 23 at 19:32
1
@MistyD2>>the_file >&2is one way to make both stdout and stderr go tothe_filein append mode.
– PSkocik
Mar 23 at 19:36
add a comment |
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votes
Error messages that aren't part of a program's primary output should and usually do go to filedescriptor 2 (stderr). To redirect an output filedescriptor N to a file, you need N>the_file (or N>>the_file) (i.e., 2>>the_file to redirect filedescriptor 2`).
When you omit the number, 1 (stdout) is implied for output redirections to a file and 0 for input redirections from a file.
(You can also do descriptor to descriptor redirections (SrcFd>&TargetFd) and/or closes (Fd>&-) and there the direction of the arrow doesn't matter.)
answered Mar 23 at 17:59
PSkocikPSkocik
36.7k65580
so how do I tell it to write 2 and everything else to the file
– MistyD
Mar 23 at 19:32
1
@MistyD2>>the_file >&2is one way to make both stdout and stderr go tothe_filein append mode.
– PSkocik
Mar 23 at 19:36
add a comment |
Error messages that aren't part of a program's primary output should and usually do go to filedescriptor 2 (stderr). To redirect an output filedescriptor N to a file, you need N>the_file (or N>>the_file) (i.e., 2>>the_file to redirect filedescriptor 2`).
When you omit the number, 1 (stdout) is implied for output redirections to a file and 0 for input redirections from a file.
(You can also do descriptor to descriptor redirections (SrcFd>&TargetFd) and/or closes (Fd>&-) and there the direction of the arrow doesn't matter.)
answered Mar 23 at 17:59
PSkocikPSkocik
36.7k65580
so how do I tell it to write 2 and everything else to the file
– MistyD
Mar 23 at 19:32
1
@MistyD2>>the_file >&2is one way to make both stdout and stderr go tothe_filein append mode.
– PSkocik
Mar 23 at 19:36
add a comment |
Error messages that aren't part of a program's primary output should and usually do go to filedescriptor 2 (stderr). To redirect an output filedescriptor N to a file, you need N>the_file (or N>>the_file) (i.e., 2>>the_file to redirect filedescriptor 2`).
When you omit the number, 1 (stdout) is implied for output redirections to a file and 0 for input redirections from a file.
(You can also do descriptor to descriptor redirections (SrcFd>&TargetFd) and/or closes (Fd>&-) and there the direction of the arrow doesn't matter.)
answered Mar 23 at 17:59
PSkocikPSkocik
36.7k65580
Error messages that aren't part of a program's primary output should and usually do go to filedescriptor 2 (stderr). To redirect an output filedescriptor N to a file, you need N>the_file (or N>>the_file) (i.e., 2>>the_file to redirect filedescriptor 2`).
When you omit the number, 1 (stdout) is implied for output redirections to a file and 0 for input redirections from a file.
(You can also do descriptor to descriptor redirections (SrcFd>&TargetFd) and/or closes (Fd>&-) and there the direction of the arrow doesn't matter.)
answered Mar 23 at 17:59
PSkocikPSkocik
36.7k65580
answered Mar 23 at 17:59
PSkocikPSkocik
36.7k65580
answered Mar 23 at 17:59
PSkocikPSkocik
36.7k65580
answered Mar 23 at 17:59
PSkocikPSkocik
36.7k65580
36.7k65580
so how do I tell it to write 2 and everything else to the file
– MistyD
Mar 23 at 19:32
1
@MistyD2>>the_file >&2is one way to make both stdout and stderr go tothe_filein append mode.
– PSkocik
Mar 23 at 19:36
add a comment |
so how do I tell it to write 2 and everything else to the file
– MistyD
Mar 23 at 19:32
1
@MistyD2>>the_file >&2is one way to make both stdout and stderr go tothe_filein append mode.
– PSkocik
Mar 23 at 19:36
so how do I tell it to write 2 and everything else to the file
– MistyD
Mar 23 at 19:32
so how do I tell it to write 2 and everything else to the file
– MistyD
Mar 23 at 19:32
1
1
@MistyD
2>>the_file >&2 is one way to make both stdout and stderr go to the_file in append mode.– PSkocik
Mar 23 at 19:36
@MistyD
2>>the_file >&2 is one way to make both stdout and stderr go to the_file in append mode.– PSkocik
Mar 23 at 19:36
add a comment |
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The output your seeing is probably stderr (filedescriptor 2).Try 2>>/var/log/access.log
– PSkocik
Mar 23 at 17:43
@PSkocik yes that worked. And to start it in the background simply add & to the proc name ?
– MistyD
Mar 23 at 17:46
After the whole command, yes.
– PSkocik
Mar 23 at 17:47
@PSkocik that worked can you put that as an answer
– MistyD
Mar 23 at 17:51