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Replacing some text

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Yes, the SA does appear after the 6 - 9 numbers, and that's what I was needing to accomplish. First, identify the 6 - 9 numbers, then replace the SA that follows.


As I mentioned earlier, a colleague managed to do it with perl, so it's not that important, but I expected sed could do it somehow. I'm just limited in my knowledge of sed to be able to complete it, and so was interested in how it might work.


I tried a combination of pauls with silversurfers:


sed 's/^*[0-9]{6,9}SA/-newsa-/ 1' < file > file2


find the numbers from 6 - 9 in length, then locate the SA which follows, but it didn't work.

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