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#!/usr/bin/python |
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import os, sys |
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usage = "usage: %s search_text replace_text [infile [outfile]]" % os.path.basename(sys.argv[0]) |
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if len(sys.argv)<3: |
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print usage |
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else: |
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stext = sys.argv[1] |
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rtext = sys.argv[2] |
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input = sys.stdin |
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output = sys.stdout |
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# print "There are %s args " %len(sys.argv) |
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if len(sys.argv) > 3: |
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input = open(sys.argv[3]) |
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if len(sys.argv) > 4: |
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output = open(sys.argv[4], 'w') |
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for s in input: |
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output.write(s.replace(stext, rtext)) |
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if len(sys.argv)> 3: |
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input.close() |
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if len(sys.argv) > 4: |
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output.close() |