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output redirection

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# 1  
Old 08-30-2012
output redirection
Hi all

I was wondering if there was a slicker way of doing this without the file -

Code:
awk '{print $2}' FS=":" "${FILE}" > "${TMPFILE}"
 
{    
      read M_GRP_ID || m_fail 1 "Error: Read failed 1 (${FUNCNAME})" 
      read M_GRP_WAIT || m_fail 1 "Error: Read failed 2 (${FUNCNAME})"
} < "${TMPFILE}"

How could I redirect the output of the awk straight into the reads without using an intermediate file?

Thanks in advance

Steady
# 2  
Old 08-30-2012
Can't you just use a pipe?

Code:
$ echo "some pie" | awk '{print $2}' | { read ONE || echo TWO ; read THREE || echo FOUR; }
FOUR

Last edited by CarloM; 08-30-2012 at 11:54 AM.. Reason: Typo
# 3  
Old 08-30-2012
Use a pipe to supply input to the code block:
Code:
awk '{print $2}' FS=":" "${FILE}" | {    
      read M_GRP_ID || m_fail 1 "Error: Read failed 1 (${FUNCNAME})" 
      read M_GRP_WAIT || m_fail 1 "Error: Read failed 2 (${FUNCNAME})"
}

This User Gave Thanks to elixir_sinari For This Post:
steadyonabix
# 4  
Old 08-30-2012
bash
Hi,

I dont know, What OS and Shell you are using??
But in BASH, you can use like below,

Code:
awk 'BEGIN{FS=":";}{print $2;}' file1|while read M_GRP_ID
do
   read M_GRP_WAIT
   echo ${M_GRP_ID}
   echo ${read M_GRP_WAIT}
done

Cheers,
Ranga Smilie
# 5  
Old 08-30-2012
Quote:
Originally Posted by CarloM
Can't you just use a pipe?

Code:
$ echo "some pie" | awk '{print $2}' | ( read ONE || echo TWO ; read THREE || echo FOUR )
FOUR

That code in parentheses runs in a sub-shell. If you ever want to refer to the variables ONE and/or THREE, you'll not be able to.
# 6  
Old 08-30-2012
Yeah, that's a typo/not paying attention error...
# 7  
Old 08-30-2012
Thanks for all the help guys

The pipe was the most suitable for what I wanted Smilie

Cheers
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