09-26-2019
It's an interesting example of how discredited programming methods get renamed to make them acceptable again.
- Self-modifying code? Obviously bad and never allowed, at all, ever.
- Self-installable plugins? Too useful to get rid of.
- Goto? The despised root of all programming evil. Never do this!
- Try/catch? Too useful to get rid of.
But renaming them, instead of teaching them as what they are, downplays their risks.
These 2 Users Gave Thanks to Corona688 For This Post:
6 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
being ordinary user (not having any administrative rights) can avail myself a facility to know who logged and logged out with their timings get popped onto my terminal as if it get echo 'ed... (3 Replies)
Discussion started by: vkandati
3 Replies
2. Ubuntu
I stumbled across a somewhat strange behavior of tar and find no explanation for it: i was testing a DVD for read errors and thought to simply tar the content and direct the output to /dev/null:
tar -cvf - /my/mountpoint/*ts > /dev/null
This way i expected the system to read the complete... (4 Replies)
Discussion started by: bakunin
4 Replies
3. IP Networking
Hi,
We have a website running on a local centos 5.4 surfer, static IP.
The domain.com uses no-ip.com to take care of the DNS, it forwards all to my server.
My router receives the port 80 call, routes it to my server and the world can see domain.com perfectly fine.
However, we cannot see... (3 Replies)
Discussion started by: lawstudent
3 Replies
4. UNIX for Dummies Questions & Answers
I have scheduled couple of shell scripts to run using 'at' command.
The o/p of at -l is:
$ at -l
1320904800.a Thu Nov 10 01:00:00 2011
1320894000.a Wed Nov 9 22:00:00 2011
1320876000.a Wed Nov 9 17:00:00 2011
$ uname -a
SunOS dc2prcrptetl2 5.9 Generic_122300-54 sun4u sparc... (2 Replies)
Discussion started by: superparticle
2 Replies
5. Shell Programming and Scripting
I have the below to direct the values to a xml file,
echo "<xml version="1.0">" >> /root/xml/sample.xml
but when the check the sample.xml file, the output looks like the below one(without double quotes)
<xml version=1.0>
but i want the output like
<xml version="1.0">
Any help on... (8 Replies)
Discussion started by: vel4ever
8 Replies
6. UNIX for Beginners Questions & Answers
Hi All,
I have a requirement to get the address values from a large log file along with the user details.
line1,line2,city,stateCode,postalCode,countryCode. The below code as advised in the earlier post is giving the user data
zgrep -B1 "Failed to calculate Tax" log.2018-05-23.gz | grep... (8 Replies)
Discussion started by: nextStep
8 Replies
LEARN ABOUT CENTOS
gethostip
GETHOSTIP(1) General Commands Manual GETHOSTIP(1)
NAME
gethostip -- convert an IP address into various formats
SYNOPSIS
gethostip [-dxnf] [HOSTNAME|IP]
DESCRIPTION
This manual page documents briefly the gethostip command.
The gethostip utility converts the given hostname or IP address into a variety formats. It is provided by the syslinux package to make it
easier to calculate the appropriate names for pxelinux configuration files. These filenames can be the complete hexadecimal representation
for a given IP address, or a partial hexadecimal representation to match a range of IP addresses.
OPTIONS
A summary of options is included below.
-d Output the IP address in decimal format.
-x Output the IP address in hexadecimal format.
-n Output the host's canonical name.
-f Full output. Outputs the IP address in all supported formats. Same as -xdn.
SEE ALSO
syslinux(1)
More details can be found in the pxelinux documentation, which can be found in /usr/share/doc/syslinux/pxelinux.doc.gz on Debian GNU/Linux
systems.
AUTHOR
This manual page was compiled by dann frazier <dannf@debian.org> for the Debian GNU/Linux system (but may be used by others).
GETHOSTIP(1)