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Sanjay Prajapat
Sanjay Prajapat
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I am piping the output from multiple commands into the same file simultaneously using terminal like this:

cmd1 | tee -a /tmp/file 
cmd2 | tee -a /tmp/file 
cmd3 | tee -a /tmp/file

Is it safe to use? Any data loss or read/write permission problem with this method?

Edit: I am fine with output getting intermixed, I just want to make sure that everything get written to the file. What if two commands tries to write the output to the file exactly same time, Will it crash or not?

I am piping the output from multiple commands into the same file simultaneously using terminal like this:

cmd1 | tee /tmp/file 
cmd2 | tee /tmp/file 
cmd3 | tee /tmp/file

Is it safe to use? Any data loss or read/write permission problem with this method?

I am piping the output from multiple commands into the same file simultaneously using terminal like this:

cmd1 | tee -a /tmp/file 
cmd2 | tee -a /tmp/file 
cmd3 | tee -a /tmp/file

Is it safe to use? Any data loss or read/write permission problem with this method?

Edit: I am fine with output getting intermixed, I just want to make sure that everything get written to the file. What if two commands tries to write the output to the file exactly same time, Will it crash or not?

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Sanjay Prajapat
Sanjay Prajapat
  • 175
  • 1
  • 7

Is it safe to pipe multiple commands output to the same file simultaneously using tee?

I am piping the output from multiple commands into the same file simultaneously using terminal like this:

cmd1 | tee /tmp/file 
cmd2 | tee /tmp/file 
cmd3 | tee /tmp/file

Is it safe to use? Any data loss or read/write permission problem with this method?