Check now. I'd made a mistake. When a variable assignment such as a=/boot/vmlinuz* is made, the value stored in a will be /boot/vmlinuz* and nothing else. When that variable is evaluated, the expansion of * is done depending on whether you quote it or not.
Hi, I have 2 files that I have modified to basically match each other, however I want to determine what (if any) line in file 1 does not exist in file 2. I need to match column $1 and $2 as a single string in file1 to $1 and $2 in file2 as these two columns create a match.
I'm stuck in an AWK... (9 Replies)
Hello Guyz
I have been following this forum for a while and the solutions provided are super useful. I currently have a scenario where i need to search for a pattern and start searching by keeping the first pattern as a baseline
ABC
DEF
LMN
EFG
HIJ
LMN
OPQ
In the above text i need to... (8 Replies)
Hi,
I am writing a shell script to parse some files, and gather data.
The data in the files is displayed as below.
.......xyz: abz: ......
.......xyz: abz: .....
I have tried using awk and cut, bu the position of these values keep changing, so I can use awk and split it into columns. ... (14 Replies)
Hi experts , im new to Unix,AWK ,and im just not able to get this right.
I need to match for some patterns if it matches I need to print the next few words to it.. I have only three such conditions to match… But I need to print only those words that comes after satisfying the first condition..... (2 Replies)
I have an application(Minecraft Server) that generates a logfile live. Using Crontab and screen I send a 'list' command every minute.
Sample Log view:
2013-06-07 19:14:37 <Willrocksyea1> hello*
2013-06-07 19:14:41 <Gromden29> hey
2013-06-07 19:14:42 Gromden29 lost connection:... (1 Reply)
Ive used this snippet of code on a solaris box thousands of times.
But it isnt working on the new linux box
sed -n '/interface LoopBack0/{N;/ ip address /p;}' *.conf
its driving me nuts !!
Is there something Im missing ? (7 Replies)
Im using the command below , but thats not the output that i want. it only prints the odd and even numbers.
awk '{if(NR%2){print $0 > "1"}else{print $0 > "2"}}'
Im hoping for something like this
file1:
Text hi this is just a test
text1 text2 text3 text4 text5 text6
Text hi... (2 Replies)
Hello Experts , require help . See below output:
File inputs
------------------------------------------
Server Host = mike
id rl images allocated last updated density
vimages expiration last read <------- STATUS ------->... (4 Replies)
Discussion started by: tigerhills
4 Replies
LEARN ABOUT DEBIAN
update-grub
update-grub(8) System Manager's Manual update-grub(8)NAME
update-grub - program to generate GRUB's menu.lst file
SYNOPSIS
update-grub
DESCRIPTION
update-grub is a program used to generate the menu.lst file used by the grub bootloader. It works by looking in /boot for all files which
start with "vmlinuz-". They will be treated as kernels, and grub menu entries will be created for each. It will also create the initial
menu.lst if none exists, after prompting the user. It will also add initrd lines for ramdisk images found with the same version as kernels
found. e.g. /boot/vmlinuz-2.4.5 and /boot/initrd-2.4.5 will cause a line of "initrd=/boot/initrd-2.4.5 or similar to be added for the ker-
nel entry in the menu.lst.
After update-grub has been run for the first time, the user is required to edit the generated menu.lst. The user must set the two options
update-grub uses. Then re-run the update-grub script to update the menu.lst file using the default's that have been set.
These are the options passed to the linux kernel:
# kopt=root=/dev/hda1 ro
Everything after "kopt=" is passed to the kernel as parameters. See bootparam(7) for more information.
This is the grub device from which grub loads the kernel:
# groot=(hd0,1)
(hd0,1) is a partition in grub notation. See grub(8) for more information.
This option controls if grub should create the alternative boot options in the menu entries
# alternative=true
# alternative=false
This option controls if grub should lock the alternative boot options see grub(8) for more information.
# lockalternative=true
# lockalternative=false
This option controls if grub should lock the old kernels.
# lockold=true
# lockold=false
This options controls what is used for the alternative boot options, multiple altoptions lines are allowed.
# altoptions=(some description) some kernel command line options
# altoptions=(recovery option) single
The description is placed in '()' and the kernel command line options follow that.
# updatedefault=true
# updatedefault=false
This option controls if grub should update the default entry to keep booting the same kernel even if a new one is installed.
The update-grub script can be ran automagically from the /etc/kernel-img.conf file by adding the following lines:
postinst_hook = update-grub
postrm_hook = update-grub
do_bootloader = no
For further information related to /etc/kernel-img.conf, see the manpage kernel-img.conf(5).
SEE ALSO grub(8), grub-install(8), kernel-img.conf(5) (contained in the kernel-package package), bootparam(7).
The full documentation for grub is maintained as a Texinfo manual in the grub-legacy-doc package. If the info and grub programs are prop-
erly installed at your site, the command
info grub
should give you access to the complete manual.
AUTHOR
This manual page was written by Jason Thomas <jason@debian.org>, for the Debian GNU/Linux system (but may be used by others).
Jason Thomas June 18, 2001 update-grub(8)