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Another archiver, cpio
(cd / && echo tmp | cpio -pd /home/jail)
should create (or modify) /home/jail/tmp with the attributes of /tmp

Sorry I misunderstood what you were trying to do. Try:
pax -dLrw -p e /tmp /home/jail
if you're trying to create /home/jail/tmp with the same characteristics as /tmp or:
pax -dLrw -p e /tmp...

You will have to write a parser in awk to handle unvalidated user input like that.

IF you have Linux - gawk should be there. Try regular expressions for field delimiting patterns:

Example:...

Hi.

The last example on page Functions (http://tldp.org/LDP/abs/html/functions.html) suggests that bash cannot do this.

The shell ksh has a namespace facility. So if you wrote your code as in...

Bash has local variables, but not local functions.
As a work-around you can try a classic sub-shell (where a modern implementation might avoid the overhead of an extra process).
_myf() {
# I'm...

My man page tells me this:

A DHCPDISCOVER just means that a newly-born IP interface without an assigned IP address has issued a broadcast. It does NOT mean your server has answered it. As the IP interface does not (and should...

Add a firewall ?

The first script is running sed in a subshell environment; the second is not. The subshell is a byproduct of the shell's pipeline implementation. The difference is that when $i is incremented in a...

And what about find? If you don't have file names with spaces or strage chars, please try:
#!/bin/sh
for arg in "$@"; do
date | tee -a $(find /var/lib -maxdepth 1 -name "$arg") >/dev/null ...

Hi.

It relates to multi-threading. It means 2 cores, 4 threads. Each core can work on two tasks at the same time.

Intel Hyperthreading shares internal resources of one core between 2 threads. I do not recall, but it might be call hyperthreading not hyperprocessing because the VM translation is shared, so they...

I guessed right :)
My idea was: if you have this information earlier (status 1 and 2),
just propagate it as soon as you can.

It's been a while since I've spoken MySQL... but I'd do it this wayCREATE UNIQUE INDEX IX_uploaded_name_time ON uploaded ( file_name, file_time )But the ALTER TABLE syntax (the first one) should get...

No,
or better still, it depends.

I thought that you were processing the data record by record and at the end you were mass updating the modification time in the files table.

If the...

The latter.

it is from bash job control - see the 'advanced bash scripting guide' online


I believe it is not part of POSIX, just a bash extension.