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Top Forums Shell Programming and Scripting Convert Epoch time format to normal date time format in the same file Post 302259741 by Annihilannic on Wednesday 19th of November 2008 12:24:38 AM
Old 11-19-2008
awk's date and time capabilities are limited, so I usually use perl when manipulating those. Try this:

Code:
perl -pe ' if ($_ =~ /.time.: ([0-9]+)L/) { s/$1L/scalar localtime/e; }' inputfile > outputfile

The date format isn't quite what you were looking for, but you can do some other jiggery pokery with strftime or similar.
 

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MKERRLST(1)						      General Commands Manual						       MKERRLST(1)

NAME
mkerrlst - create system error file SYNOPSIS
mkerrlst [ -i inputfile ] [ -o outputfile ] DESCRIPTION
Mkerrlst(1) creates error message files in the format described by syserrlst(5). With no arguments mkerrlst creates the file /etc/syserrlst from the internal array sys_errlist. Give just the -o option mkerrlst will create the file outputfile from the internal array sys_errlist. Given just the -i option mkerrlst will create the file /etc/syserrlst from the input file inputfile. Given both -i and -o options mkerrlst will create the error message file outputfile from the strings contained in inputfile. NOTE: error messages are numbered from 0. If the error 0 does not have a message associated with it the first string in inputfile must still be present. RETURN VALUE
mkerrlst exits with status of 0 if no errors are encountered. If errors do occur an error message is printed on stderr and the exit status is 1. ERRORS
mkerrlst(1) can encounter any of the errors for the open(2), lseek(2), read(2), or write(2) system calls. SEE ALSO
syserrlst(3) syserrlst(5) HISTORY
mkerrlst(1), first appeared in 2.11BSD. BUGS
Error messages can be a maximum of 80 characters. 3rd Berkeley Distribution March 14, 1996 MKERRLST(1)
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