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I don't know how large your log files will be, but greping or seding them will always read them from the start, which may become serious overhead.
If you just want to know if there's a DONE...

I don't see anything wrong with your code (given the stipulations in place).

If you like, you can just print the day of the week directly from AWK.

cal $mth $yr | awk 'NR==3 {split("Sat Sun Mon...

You might find this useful. I use it to validate input dates, first convert the date to the number of days since Jan 1 1900, then convert that number back to a date, and compare with input....

dd=$1
mm=$2
yy=$3

index=$( echo "$dd $mm $yy" | awk ' {
dd=$1;mm=$2;yy=$3;
if(mm<3) { mm+=12; yy--; }
print int(yy/400 - yy/100 + (mm+1)*26/10 + yy*125/100 + dd - 1) % 7
} ' )

index=`expr...

Yes, it would. However, cp's -t option is an extension to the standards and is not available on many systems, including OS X (which is the OS I use when testing suggestions I submit to this site).
...

That's what I thought. If in the first example you invoke cp once with 881 filenames, then you compare apples with apples. find needs the {} to appear just in front of the +, so it does not work out...

If you select the EFI shell, check the output of "map -r". If you do not see a CDROM or DVD there, then there is probably something wrong with the DVD hardware.

What OS version / platform ?
Is /etc/lp/interface/ (HPUX11.11 parisc...) what you are looking for?

e.g.

ant:/etc/lp/interface $ ll
total 270
drwxr-xr-x 3 lp bin 1024...

No need to install Cygwin, UWIN or anything like that. Windows 7 Ultimate comes with a full POSIX subsystem called Subsystem for UNIX-based Applications (SUA). You just need to turn it on in the...

The ls program will display mtime if you use "ls -l". And you can get atime or ctime with "ls -lu" or "ls -lc". But ls uses a strange format. It displays the month and day in all cases. If the...

awk '$1==49' file

This question implies you don't know why the shebang works. Shells ignore it -- it's a comment as far as they're concerned because it starts with # It has absolutely no effect on sourced scripts...

Bracket notation denotes a list of single characters to match.
For example "grep [cfh]at" would match:
cat
fat
hat

so "grep [b]ind" matches root 201 1 0 09:28:09 - 0:05...