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Old 06-10-2011, 05:28 PM   #1
porphyry5
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Bash; awk or sed output to variable: how keep newline at end of each output line


Either of
Code:
txt=$(sed -n -e "${ln[0]},${ln[1]} p" -e "${ln[1]} q" Notes)
txt=$(awk -v x=${ln[0]} -v y=${ln[1]} 'NR>x, NR<y' < Notes)
does what I want except all the newlines are removed if their output goes to a variable. How can I preserve them?
 
Old 06-10-2011, 05:37 PM   #2
colucix
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Have you tried to embed the variable in double quotes?
Code:
echo "$txt"
 
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Old 06-10-2011, 05:46 PM   #3
porphyry5
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Quote:
Originally Posted by colucix View Post
Have you tried to embed the variable in double quotes?
Code:
echo "$txt"
Aah, thank you. So they are there, its just that echo $txt shows line breaks as spaces.
 
Old 06-10-2011, 05:50 PM   #4
colucix
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This is the way echo works: it outputs the arguments separated by spaces. Multiple lines are multiple arguments separated by newlines, whereas using double quotes multiple lines are treated as a single argument containing newlines and it is printed as is.
 
  


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