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Re: repeat data at one line and grep as pre-set format

by Random_Walk (Parson)
on Jan 24, 2006 at 15:15 UTC ( #525196=note: print w/ replies, xml ) Need Help??


in reply to repeat data at one line and grep as pre-set format

I think you want to split each pair of data points out to a line on its own instead of having multiple datapoints on one line.

cat yourfile.txt | perl -ple 's/(\S+\s+\S+)\s+/$1\n/g'

should do this for you as long as you have even numbers of datapoints on each line

echo "00000001 99888 00000011 99889 00000002 99890 00000003 998 +08" \ | perl -ple 's/(\S+\s+\S+)\s+/$1\n/g' 00000001 99888 00000011 99889 00000002 99890 00000003 99808

Cheers,
R.

Pereant, qui ante nos nostra dixerunt!


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Re^2: repeat data at one line and grep as pre-set format
by davido (Archbishop) on Jan 24, 2006 at 18:32 UTC
    cat yourfile.txt | perl -ple 's/(\S+\s+\S+)\s+/$1\n/g'

    Isn't that the same as:

    perl -ple 's/(\S+\s+\S+)\s+/$1\n/g' yourfile.txt

    UUOC.


    Dave

      You are right and your way is more efficient too. I wrote it with the cat file | as that is how I tested it with echo, just failed to engage my brain completely :-)

      Cheers,
      R.

      Pereant, qui ante nos nostra dixerunt!

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