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Shell Programming and Scripting
simple date problem
Post 302160251 by ennstate on Monday 21st of January 2008 08:27:10 AM
01-21-2008
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The GNU date command in full of goodies but not when it comes to calculate a date or time difference. Here is what I came up with after looking to more than one solution.
Code should be self explaining.
#!/bin/bash
date2stamp () {
date --utc --date "$1" +%s
}
stamp2date (){
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Hi Everyone,
$tmp="20090620231013";
$tmp = substr($tmp,0,8)." ".substr($tmp,8,2).":".substr($tmp,10,2).":".substr($tmp,12,2);
So my output is:
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I only can think substr is easy, any perl can do this just one line very simple efficient one? :eek:
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There is a closed Thread: <url>Here will be the url to the original post once I have 5 posts in this forum...</url>
But a small bug had found his way into this very cool and simple code.
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Hi ,
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************************>
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LEARN ABOUT PLAN9
yesterday
YESTERDAY(1) General Commands Manual YESTERDAY(1) NAME
yesterday - print file names from the dump SYNOPSIS
yesterday [ -c ] [ -date ] files ... DESCRIPTION
Yesterday prints the names of the files from the most recent dump. Since dumps are done early in the morning, yesterday's files are really in today's dump. For example, if today is March 17, 1992, yesterday /adm/users prints /n/dump/1992/0317/adm/users In fact, the implementation is to select the most recent dump in the current year, so the dump selected may not be from today. With option -c, yesterday copies the dump file to the current directory. The date option selects other day's dumps, with a format of 2, 4, 6, or 8 digits of the form dd, mmdd, yymmdd, or yyyymmdd. Yesterday does not guarantee that the string it prints represents an existing file. EXAMPLES
Back up to yesterday's MIPS binary of vc: cd /mips/bin yesterday -c vc Temporarily back up to March 1's MIPS C library to see if a program runs correctly when loaded with it: bind `{yesterday -0301 /mips/lib/libc.a} /mips/lib/libc.a rm v.out mk v.out FILES
/n/dump SOURCE
/rc/bin/yesterday SEE ALSO
fs(4) BUGS
It's hard to use this command without singing. YESTERDAY(1)