[NTLUG:Discuss] How to tell file1 is half an hour older than file2?

[Paul Ingendorf]

Sorry I miss read that I expected that it would be a total shell experience 
reguardless the conceptual design is still there for a pure korn shell script.

Quoting MadHat <madhat at unspecific.com>:

> stat, sed, awk, grep, echo and test are GNU tools.
> He said without gnu tools.  
> 
> I mean in perl, it is just a few lines (adding a few for a usage
> statement to make it pretty).  Tcl isn\'t much different, or PHP (which
> can be used as a CLI script, but I wouldn\'t do it).
> 
> #!/usr/bin/perl
> if ($ARGV[0] && $ARGV[1]) {
>   @data1 = stat $ARGV[0];
>   @data2 = stat $ARGV[1];
>   if ($data1[9] > $data2[9]) { 
>     print \"$ARGV[0] is newer\\n\" 
>   } else {
>     print \"$ARGV[1] is newer\\n\" 
>   }
> } else {
>   print \"Usage: $0 <file1> <file2>
>   will return the newer file based on mtime (time the file was last
> modified)\\n\\n\";
> }
> 
> 
> I mean if you want to use stat, you can just do
> stat -t $1 | awk -F\' \' {print\'$13\'}
> to get the date in seconds since the epoc and compare them directly,
> no
> need to convert them.
> 
> There are hundreds of ways of doing this, but most use GNU tools,
> which
> he said he does not have (which seems odd to me, but...)
> 
> -- 
> MadHat at Unspecific.com
> gpg --keyserver wwwkeys.us.pgp.net --recv-keys 9DDC3E98
> Key fingerprint = E786 7B30 7534 DCC2 94D5  91DE E922 0B21 9DDC 3E98
> 
> 
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> 



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