remove characters from line

Gussifinknottle · #1 (**permalink**) 06-30-2009

Hello,

I have multiple lines in a file, each of which will have data that looks like this:

xxxxxyyyyzzzz4abcdXYZXYZXYZ
pqrstPQRST2cdPQRSTPQRST
lmnopqr6abcdefgRST.3abc

I want to be able to remove the number 4 + the following 4 characters (abcd) in the first line.

For the second line, I want to be able to remove 2 + the following 2 characters (cd)

Basically, remove the number and the number of characters matching the number removed.

Any suggestions?

Thanks,
G.

vgersh99 · #2 (**permalink**) 06-30-2009

might be a bit lengthy, but.,

Code:

nawk -f gus.awk myFile

gus.awk:

Code:

{
  while( match($0, "[0-9][0-9]*")) {
    len=substr($0, RSTART, RLENGTH)
    for(i=1;i<=len;i++) rep=(i==1)?".":rep "."
    sub(len rep, "")
  }
}
1

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