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Source code for galaxy.datatypes.util.generic_util
import subprocess[docs]def count_special_lines(word, filename, invert=False): """ searching for special 'words' using the grep tool grep is used to speed up the searching and counting The number of hits is returned. """ try: cmd = ["grep", "-c", "-E"] if invert: cmd.append('-v') cmd.extend([word, filename]) out = subprocess.Popen(cmd, stdout=subprocess.PIPE) return int(out.communicate().split()) except Exception: pass return 0