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DistroWatch.com: Put the fun back into computing. Use Linux, BSD. (http://www.distrowatch.com)

Sorry dude, can't post test/homework questions here. You should google shell test syntax for clues.

I'm pretty sure you erased the volume's label, which is preventing the OS from determining what the size is, the type of filesystem, etc.

For detailed info on the dd command (or any other UNIX...

\s is shorthand for any whitespace (tab, space, newline). And, because there's no qualifier telling it how many to match, it just means the first whitespace in the line.

Because the ^ (carat) is...

After you login, .profile is read. That's just the default behavior.



PPID refers to the parent process ID. Processes with a PPID of 0 belong to the kernel.

Linux

DistroWatch.com: Put the fun back into computing. Use Linux, BSD. (http://www.distrowatch.org)

First start off in /var/adm/syslog/syslog.log

Edit: My code is garbage....go with the above post. ;)

Sounds like a homework question...

Take the program in pieces. Start simple

You are correct. The | is a pipe.



Yes. As far as I know, the | character is only used to "pipe" output to another command.

A pipe is represented by the | character. It uses the output of the command to the left of it as the input to the command on the right of it.

Example: Say you want to look at all of the...

Untested - do not try it, just thinking.


/tmp/bin/mv * ../

Looks like part of the disk is bad:


# dd if=/dev/dsk/c1t9d0 of=/dev/null
dd read error: I/O error
142780+0 records in
142780+0 records out

Please post the output of anything in /var/adm/syslog/syslog.log at around 4:00 AM and ps -ef | grep cron

Maybe there are errors the script(s) that are cronned. Do the things that are cronned run on their own without errors?

Hello. I have a test server that I'm messing around with, and just recently received an error on startup that a logical volume in the root volume group couldn't be re-synchronized. Server boots...

See if this meets your requirements:


ls -altR | awk '{print $9 ": " $6 "-" $7 "-" $8}'

What does your log look like?

crontab -l

0 * * * * /path_to_script 1> /dev/console

grep -c string /etc/passwd counts the occurrences of a particular string. So if grep -c returns 0, the user doesn't exist.

Edit: Era beat me to it! :)

ifconfig interface

example: ifconfig eth0

I'm not quite clear on something. First you said



Then you said



So I'm a little confused. At any rate, you specify the number of seconds you want the cmd to sleep. For example:

...

Some ports are OS specific, and it also depends on the version of Oracle you are running. TNS is standard across all OS's (as far as I know) for 10gR2.

Check out this document...

You are checking whether or not the UNIX command completed successfully. $? does not report a mysql exception. Since the command got you into mysql successfully, the return code was 0. From my...

1. Not sure why they are using 1023, quite frankly.

2. If you have GB of files, divide x (or tot in my example) by 1073741824

3. %4.2f\n:

% is prefix to a format code
4 means four...