Linux Ask! is a Q & A web site specific for Linux related questions. Questions are collected, answered and audited by experienced Linux users.
Print large banner on printer
Answer:
This is a less well known command for Linux. It allow you to prints a large, high quality banner on the standard output.
Example:
# banner -w 80 Hello World
Where -w change the width of the output, in which the default is 132.
Convert a Nero .nrg file to .iso file
Answer:
It is easy to convert a Nero .nrg file to an .iso file, using the following command.
# dd bs=1k if=input.nrg of=output.iso skip=300
How to change MAC address
Answer:
To change MAC address, you need to take the network interface
# sudo ifconfig eth1 down
Then change it by
# sudo ifconfig eth1 hw ether 00:01:02:03:04:05
How to validate the format of a XML file in Linux?
Answer:
You can use xmllint, which came as part of the libxml2-utils package.
To install
# sudo apt-get install libxml2-utils
To validate the format of XML document
# xmllint --noout file.xml
Create ISO image from CD-ROM in Linux
Answer:
1. Put the CD in your CDROM
2. umount the CD if it was mounted automatically (assume the current mount point is at /mnt/cdrom, you can type the mount command to check if your are not sure)
# umount /mnt/cdrom
3. Create the ISO image
# dd if=/dev/cdrom of=/tmp/cd.iso
