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#!/usr/bin/python
import sys
#linestripper file file maxlen [numlines]
if len(sys.argv) < 3:
print "linestripper file1 file2 maxlen [numlines]"
print " outputs subset of file1 to stdout, ..of file2 to stderr"
sys.exit(1)
f1 = open(sys.argv[1],'r')
f2 = open(sys.argv[2],'r')
maxlen=int(sys.argv[3])
numlines = 0
if len(sys.argv) > 4:
numlines = int(sys.argv[4])
count=0
for line1 in f1:
line2 = f2.readline()
w1 = len(line1.strip().split())
w2 = len(line2.strip().split())
if w1 <= maxlen and w2 <= maxlen:
count = count + 1
sys.stdout.write(line1)
sys.stderr.write(line2)
if numlines > 0 and count >= numlines:
break
f1.close()
f2.close()
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