Passing args to subprocess.Popen
Question
Need to call grep from python grep command: grep -B 5 -A 5 "make.*Error|Error-" file
Tried various combinations of escaping the regex make it work with subprocess.Popen
proc = subprocess.Popen(['grep','-B 5', '-A 5', r'"make.*Error|Error-"', file], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
Am I missing some sort of escape characters to pass that regex correctly to grep?
Appreciate the help
1 answers
solution1
0 2023-01-31 04:30:46
changed grep to egrep and used the following format to pass regex and it worked!
proc = subprocess.Popen(['egrep','-C 5', r"Error-|make.*Error", 'file.log'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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