But the thing is, I want to be able to capture the full fasta sequence title (>hsa_circ_0000001|chr1:1080738-1080845-|None|None) along with the sequence and print that into a file and I want to capture a part of the sequence title and use it to name the file (hsa_circ_0000001) excluding '>'.

If I use your method surely I will not be able to print the full fasta sequence title followed by a newline and then the sequence in my newly created file, because $id will become (hsa_circ_0000001), whereas I need to be able to capture both (hsa_circ_0000001) and (>hsa_circ_0000001|chr1:1080738-1080845-|None|None) and apply them seamlessly as the new files are created in my loop.

Pete.

In reply to Re^4: An overlapping regex capture by Peter Keystrokes
in thread An overlapping regex capture by Peter Keystrokes

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