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95 views

How to remotely view tty1 stdout at pts/0 where the command runs?

Ubuntu 13.10 (Saucy) is running inside a Parallels Desktop version 8 for Mac virtual machine (KVM) and has telnet installed for remote access. To remotely access Ubuntu, the Mac terminal application ...
0
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1answer
89 views

When piping output to a file, why are stderr and stdout in the wrong order?

I have a perl script: warn "1\n"; print "2\n"; warn "3\n"; print "4\n"; I pipe the output to a file: perl script.pl &> foo cat foo: 1 3 2 4 Why isn't the output in order, and how do I ...
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3answers
14k views

What does 2>/dev/null mean…?

I want one or two line description about the following command line: grep -i '\/support\/security\/bulletins\/' content 2>/dev/null
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1answer
329 views

“Bad file descriptor” with /dev/stdin using dd

I've been using this method (Running off a live CD on both ends, and in root shell, as suggested in another of my questions) to clone one computer I've got set up to my liking to four others with the ...
2
votes
2answers
37 views

Taking input from a file and writing to it in the same command

My encoder is a program that encodes a piece of text and prints the encoded text to the standard output. But when I do: cat file.txt | encoder > file.txt what happens is that all the text in ...
1
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2answers
73 views

Redirect stdout and stderr so that it is displayed or stored nowhere

I want a process to just NOT print its stdout or stderr output. I know that I can do something like program >output.txt 2>errors.txt and then rm output.txt errors.txt but its not elegant. I want ...
1
vote
1answer
87 views

How to make everything on stdout be read aloud (using espeak)?

I've got the eSpeak TTS system up and running, and I like it quite a bit. I'm wondering, is there a way to pipe EVERYTHING that gets printed to STDOUT to espeak? I'm trying to set up a system without ...
3
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2answers
3k views

How can I view stdout/stderr of a startup application?

Some of the commands that I have in Startup Applications do not start properly when I login. (In particular I am having trouble with gtk-redshift.) In order to debug, I would like to be able to view ...
1
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1answer
244 views

Directly compress stdout

can someone tell me if is possible to directly compress stdout? I would like to do this in one step without creating temporary file files.txt... Example: cat file* > files.txt tar -czf files.tar ...