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Hey folks. I wrote a little awk script that summarizes /proc/net/dev info and then pipes it to the nix column command to set up column spacing appropriately.

Here's some example output:
Iface ...

If you don't get any responses, you might be better off posting this at python-forum (http://www.python-forum.org/pythonforum/index.php).

Open the man page and search for "no header" and you'll find the right option.

Well you already have been using -f .... and it should be obvious what -C does, but yes... check the man page (or just try it out).

As you say, learning is great, so why don't you just look at the ps man page? You're wasting your time with grep.

ps -fC sched

You want this user to ONLY be able to connect via ftp? They don't need to log in to a shell on the system? Also, you didn't say what kind of nix. Everything you want is possible, and there are...

Well you didn't say using what, so I'll stick with the ever-wonderful bash. Set your outputfile name and then run the script as ./scriptname "INSERT YOUR COMMAND HERE" or simply edit the YOURCMDHERE...

verdepollo gave you the right answer based on what you told us. Perhaps you didn't understand that it was prompting you to say "y" to delete each file? Now that you've added a wrinkle to things, with...

I'm sorry man. I love sed, and I use it for all kinds of things, but I would never use it for this. ... I don't understand how it's being used here, and I don't quite care to try and muddle through...

Man that's awesome.

To the original poster: Carlo could give all the details, but the big difference I see between the two solutions he gave is that one grabs the first occurrence of a line, and...

If you're okay with the new file not including timestamps, it would be really simple:
sed 's/#####:TM.*//' file | sort -u > newfile

If you need timestamps, I can offer this BASH snippet, but it...

In case you're referring to the "." in the 3rd field:

awk '$7 == "." {next}; $3 == "." {$3 = "-1"} {print}' file

HOLY CRAP! 3.5 years since I started learning nix (and bash)--how the heck have I not seen this before! Wow. Thanks for the taking the time radoulov.

@barrydocks: Why do you want to remove dots...

Awesome. I knew what IFS was, but I had never changed it before, and the whole leading/trailing spaces being stripped thing didn't occur to me before you mentioned it. Thanks for taking the time to...

Well... It's a cluster. The person who wrote it seems to me to be insane. ;)

cat /etc/passwd | grep "^[^:][^:][^:][^:]:"
This greps for lines beginning with "XXXX:", where X is any character...

Very nice radoulov! I'm a bash dude and was familiar with ${VAR/MATCH/REPLACE/} syntax but didn't know about all the extra details, so was a bit confused at first. For anyone else that's looking for...

This isn't exactly a question. Just thought I'd share something I just wrote and found useful.

For those of you on modern linux boxen: you may be aware that there's a lovely little tool called...

Assuming ALL your 12 files begin the same, this would work:
sed -i "1s/H|......../H|$(date +%Y%m%d)/" FILES*

Let me start with a question: Why are you so concerned about 1GB of space? ... Or: why are you so opposed to swap? I think you should read the link dude2cool posted. It looks like it's a good page of...

Or, even simpler, your script can create files in a tmpfs that resides on a ramdisk that you already have on your computer, assuming you're using linux (you didn't say).

You can google about this...

As an addendum to Corona's words of wisdom:
Look up what the letters in "fifo" traditionally stand for, if you don't already know.

If you want to see a simple real-world example, check out a...

First thing to try would be to protect that asterisk from your local shell, i.e.: \*.dem, "*.dem", or '*.dem'

As Corona said, this REEEEALLY depends what flavor of linux + version you're running. For example, if you're running a recent version of Fedora, you won't see anything like that in /etc/inittab....

In addition to what they said, since you're starting out and already mentioned you're using BASH: Don't use the classic shell builtin '[ expression ]' ; use the shell keyword '[[ expression ]]'....

First thought: Why in the world is this a perl script?
Second thought: don't use ls -h: some files might have a suffix of M; some G (etc). No good.
Third thought: Why are you doing this? Whatever...