awk command (cygwin) is giving me empty file -


i'm trying compare data 2 files using awk command (cygwin). 1 file has names of transcription factors , other file (database) has genes(rows) different cells (columns). i'm using: 

awk -f, 'fnr==nr {a[$1]; next}; $1 in a' tf.csv db.csv > output.csv

but it's gives empty file , when keep names of genes form database file works.

if same command run on terminal of linux runs perfectly.


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