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Top Forums Shell Programming and Scripting Calculating the epoch time from standard time using awk and calculating the duration Post 302645049 by Scrutinizer on Wednesday 23rd of May 2012 02:21:07 AM
Old 05-23-2012
ksh93 version u or newer:
Code:
#!/bin/ksh
{ 
  stamp=""
  read;
  while IFS=. read dd ms
  do
    stamp="$(printf "%(%s)T" "$dd").$ms"
    if [ -z $ref ]; then
      ref=$stamp
    fi
    printf "%0.2f\n" $(( stamp - ref ))
  done
} < infile

There is a typo on the last line of the sample... (05/23/2012 08:31:15.500)
 

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PCAP_SET_TSTAMP_TYPE(3PCAP)											       PCAP_SET_TSTAMP_TYPE(3PCAP)

NAME
pcap_set_tstamp_type - set the time stamp type to be used by a capture device SYNOPSIS
#include <pcap/pcap.h> int pcap_set_tstamp_type(pcap_t *p, int tstamp_type); DESCRIPTION
pcap_set_tstamp_type() sets the the type of time stamp desired for packets captured on the pcap descriptor to the type specified by tstamp_type. It must be called on a pcap descriptor created by pcap_create() that has not yet been activated by pcap_activate(). pcap_list_tstamp_types() will give a list of the time stamp types supported by a given capture device. See pcap-tstamp(7) for a list of all the time stamp types. RETURN VALUE
pcap_set_tstamp_type() returns 0 on success if the specified time stamp type is expected to be supported by the capture device, PCAP_WARN- ING_TSTAMP_TYPE_NOTSUP on success if the specified time stamp type is not supported by the capture device, PCAP_ERROR_ACTIVATED if called on a capture handle that has been activated, and PCAP_ERROR_CANTSET_TSTAMP_TYPE if the capture device doesn't support setting the time stamp type. SEE ALSO
pcap(3PCAP), pcap_list_tstamp_types(3PCAP), pcap_tstamp_type_name_to_val(3PCAP), pcap-tstamp(7) 21 August 2010 PCAP_SET_TSTAMP_TYPE(3PCAP)
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