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akrennmair/gist:0b7f8013c58e133e203a

Created July 31, 2014 13:27
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foobar.sh
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gistfile1.txt
#!/bin/sh
# save as foobar.sh, chmod 755 foobar.sh, ./foobar.sh and see what happens.
echo 1 ; line=`tail -1 $0` ; num=`echo $line | awk '{ print $2 + 1 }'` ; echo $line | sed "s/^echo [0-9]* ;/echo $num ;/" >> $0
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