Stephen, The regex that you have there in interpreted by NiFi as "the filename must consist of 3 characters, beginning with a c and ending with an r". What you want is "the filename must begin with a c, followed by any character, followed by an r, followed by anything else." So you'd want "c.r.*" I do believe.
Thanks -Mark > On May 28, 2019, at 11:44 AM, Stephen Greszczyszyn <sgres...@gmail.com> wrote: > > Hi there, > > I'm running NiFi in docker. I'm trying to enable flow debugs and also to > determine if NiFi can actually see in my data directory path. I'm trying to > use a simple recursive list file processor to find the files based on a > regular expression "^c.r". > > I can docker exec into the container and can see that the nifi container can > "see" into my filepath OK: > > nifi@4f614c6c67c4:/data/sftp/cdr$ ls -1t | head -5 | egrep '^c.r' > cdr_AP2-HKG-CCP-UCM_12_201905281539_35251 > cdr_AP2-HKG-CCP-UCM_06_201905281539_297892 > cmr_AP2-HKG-CCP-UCM_06_201905281539_297892 > cdr_AP9-SYD-UCCE-UCM_05_201905281539_200435 > cdr_AP2-HKG-CCP-UCM_11_201905281539_98483 > > However, I can't get the ListFile processor to work and find those files. > Any ideas on debugging strategies? > > Thanks.
