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Every programming language is an abstraction layer between the bare machine and the human thought process. In some languages this layer is thicker than in others: in Assembler it is very thin (almost...

If you are uncomfortable, then, by all means, don't use our service. It is as well understandable as it is perfectly within your rights not to seek help here.

The reason why we have this rule in...

What is this ? do you know the rules of this forum

(1) No flames, shouting (all caps), sarcasm, bullying, profanity or arrogant posts.

Here people are spending there time to help others, and...

Yes, I have already deleted that from my post.

While there may be combinations of AWK implementation and operating system on which your suggestion is faster, I compared it against its predecessor on two combinations and yours was slower...

This year is the 110th birthyear of John von Neumann (born "Neumann Janos"). Interestingly, despite his achievements, both in number and in profoundness, he is hardly known among the general public....

$ echo Jun | awk ' { printf("%02d",int(index("JanFebMarAprMayJunJulAugSepOctNovDec",$1)/3)+1) } '
06

Plus, it's never secure enough:

http://imgs.xkcd.com/comics/security.png

Yes. However, there is no need to save the contents of file in a variable. Just use the line:
$(cat geom.txt)in the here document instead of:
geo=$(cat geom.txt)before the here document and:...

If you, yourself, the person for whom this task matters, cannot be bothered to try, why should any of us invest our time? Especially when there is no indication that you have taken any initiative to...

We understand that the command:
cat abc.txt | grep 123
prints any line in the file abc.txt that contains the string "123". We understand that the command:
grep 123 abc.txt
does exactly the same...

\| is a GNU extension. There is no alternation operator in standard basic regular expression grammar. Outside of GNU (and Busybox, probably, since they explicitly model their implementation on GNU...

hanson44, I noticed you are so against "spoon-feeding" and even suggested adding a rule.

But how do you explain this thread...

What's the error message? What's the specific problem? And please send an example of the directory structure. Then the dears can help you. :D

Yes, sometimes the point seems to be to make a one-liner as short and cryptic as possible. It celebrates the brilliance and creativity of the creator. The reader stands back in awe, in amazement that...

perl -e 'print $_%10 for (1..132)'


where 132 is the length you are testing.

Supposing that you have 1-3 digit user numbers, you could also use:
awk '{print $2 }' ?.usr ??.usr ???.usr > data.txt
without needing to resort to sort and xargs. Obviously, you'll need more terms...

I don't have time at this very moment to consult an implementation's source or run some tests (I might in a few hours), but I would bet that you are wrong about this. The integral type with which...

I've been playing a flight simulator called Kerbal Space Program a lot lately. You build rockets and fly them. There's planets, moons (http://burningsmell.org/images/minmus.png), more moons...

Contrary to the venerable Dons assumption i suppose the field 4 is the number you want to analyze. If i get you correctly your requirement is:

1. only lines with field3="chr3" as Don already...

Kind of exactly how I've shown you.

A="abc"
B="def"

read $A$B <<<"string" ...should put the string "string" into the variable named abcdef.

This is how it's often used: read VARNAME ...but...

Just write an init script. It's simple, understandable, and even more important easily maintainable for someone in the future.

SMF services are none of that.

SMF services are great when you...

There was a major difference in the behavior of the echo utility (or shell built-in) between 4.2BSD (from the University of California, Berkeley) and UNIX System V (from AT&T Bell Laboratories). In...

Try to identify the file via inode number and delete it that way:
$ touch ' '
$ ls -i
4907244 4907245 file1.txt 4907246 file2.txt
$ find . -inum 4907244 -exec rm {} \;
$ ls -i
4907245...

The % character has a special meaning in crontab entries.
man crontab
...You need to escape each % as \%;
'text1%text2' becomes 'text1'\%'text2' and "text3%text4" becomes "text3"\%"text4" (i.e....