MATLAB: How to add text from name of .txt-file into string in a cell

cellMATLABstrings

Hi! I wonder if it is possible to add the name of a textfile for example: 200807.txt into strings in a cell that looks like this:
 'METAR ESDF 010020Z AUTO 31003KT 230V350 9999NDV NCD 12/08 Q1017'
 'METAR ESDF 010050Z AUTO 24003KT 230V320 9999NDV NCD 12/08 Q1017'
 'METAR ESDF 010120Z AUTO 25003KT 230V350 9999NDV NCD 11/08 Q1017'
The strings exists in a .txt-file containing 45000 rows approximately that is imported with fread(). The only information about the year and month of the data is from the filename itself. The problem is that I would like to add the name of the file which contains the information about year and month to the part '010020Z'. That would provide a unique date and time to my strings that I could later use with datevec or datenum. Is there a way of doing this with matlab?
Thankful of your help!

Best Answer

Use regexprep:
regexprep(yourcellarray, 'd{6}Z', sprintf('%s$0', stringtoadd))
The above regular expression matches exactly 6 digits followed by Z and prepend that section with whichever string you want to add.
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