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August 29, 2015 14:05
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| #!/bin/bash | |
| if [ -z "$2" ] ; then | |
| echo "Usage: $0 <input> <output> [start-offset]" | |
| exit 1 | |
| fi | |
| START=$3 | |
| if [ -z "$3" ] ; then | |
| START="yesterday" | |
| fi | |
| TIMESTAMP=`tcpdump -tttt -nnNN -r "$1" -c1 2> /dev/null | awk '{print $1, $2}'` | |
| DIFF=$[ $(date -d "$START" +%s) - $(date -d "$TIMESTAMP" +%s)] | |
| editcap -t $DIFF $1 $2 |
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