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Full Discussion: Help with tee command
Top Forums Shell Programming and Scripting Help with tee command Post 302778727 by Corona688 on Monday 11th of March 2013 12:15:03 PM
Old 03-11-2013
It doesn't have to finish ls before running tee. They end up running simultaneously -- literally so if you have multiple cores.

The easy way to fix this would be to put flie_list.xtx in a different directory.
 

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tee(1)							      General Commands Manual							    tee(1)

NAME
tee - pipe fitting to copy standard output to file SYNOPSIS
[file]... DESCRIPTION
The command transcribes the standard input to the standard output and makes copies in the files. Options This option ignores interrupts. This option appends the output to the files rather than overwriting the files. EXTERNAL INFLUENCES
Environment Variables determines the language in which messages are displayed. If is not specified in the environment or is set to the empty string, the value of is used as a default for each unspecified or empty vari- able. If is not specified or is set to the empty string, a default of "C" (see lang(5)) is used instead of If any internationalization variable contains an invalid setting, behaves as if all internationalization variables are set to "C". See environ(5). International Code Set Support Single- and multibyte character code sets are supported. RETURN VALUE
The command returns zero upon successful completion, or nonzero if the command fails. EXAMPLES
Write a list of users to the screen and also append the list to the file STANDARDS CONFORMANCE
tee(1)
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