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Switch line in txt file

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# 8  
Old 06-24-2016
Quote:
Originally Posted by mad man
Hi Aia,

Code:
perl -nle '$p and print "$p ",(split)[1]; ($p)=/^(\d+)/' primo102.file

Output:
Code:
144185 qqr8ot6l_1_1
144186 ukr8pf2e_1_1
144187 ter8p9gc_1_1
144188 4er8qb84_1_1

I tried this and it worked can you please explain this inline perl command.

Thanks.
It is based on the premise that the following structure is true:
A line starting with a digit or more which we want to capture, followed by another line where we would like to split the line into two, using an space as separator.
You should then read the command starting from its end.
Code:
($p)=/^(\d+)/     # capture the digits in the beginning of the line
$p and print      # if there were digits captured, print the following:
"$p ",(split)[1]; # the previous obtained number and the second part of splitting the current string in half, adding an space in between

This User Gave Thanks to Aia For This Post:
mad man
# 9  
Old 06-26-2016
Thank you
Thank you
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