I have a dout in -u option in ls command. If we give ls -lt command it will dispaly the last modfied time. If we give ls -lu command it will display the last usage time of the file.
Hi All,
I want to ssh to a remote terminal i did the following steps
1. On the client run the following commands:
2. $ mkdir -p $HOME/.ssh
3. $ chmod 0700 $HOME/.ssh
4. $ ssh-keygen -t dsa -f $HOME/.ssh/id_dsa -P ''
and then tried the following
$ ssh -i $HOME/.ssh/id_dsa server
... (1 Reply)
Hi,
I need to capture output of prstat command for certain pid's .I found it as prstat -j filename. I created a filename projlist gave the pid number on the projlist file and run the cmd like this
>prstat -j projlist
prstat: illegal argument -- projlist
can anybody suggest how to... (1 Reply)
how can I find cpu usage memory usage swap usage and
I want to know CPU usage above X% and contiue Y times and memory usage above X % and contiue Y times
my final destination is monitor process
logical volume usage above X % and number of Logical voluage above
can I not to... (3 Replies)
I know one of the more seasoned veterans probably opened this thread looking for their chance to refer me to the site's search feature and let me tell you.
I'VE LOOKED!!!! And I didn't find anything helpful...
So, I've got a windows background and I'm fond of its search feature which comes... (6 Replies)
Good day all.
I'm trying to add a user with useradd and the -p option to assign a project name, but the result is that the user is created with an error message: "UX: useradd: user.root name should be all lower case or numeric."
The command:
useradd -d /export/home/tester -g rtpgrp -G... (2 Replies)
Hi gurus of unix, I haved installed my openSolaris in a HP530,
Recently I use the following command
beadm destry opensolaris1
beadm destry opensolaris2
After That I reboot my Laptop.
Well when I go to my work I try to open my wireshark tool, but the option in GUI interface does not appear!!!... (2 Replies)
Hi,
I am using mailx command in shell script. When i put -c option for CC , i get error message as "Unknown flag: -c" . I checked manual of mailx command and found that ~c to be used but after using ~c also it is not working. My shell is Korn. Kindly let me know what i have to do .
Thanks (9 Replies)
Hi,
i am using fgrep command with following syntax
fgrep -v -f pattern_file_name file
file contains few line and have the pattern which i am giving in pattern file.
My Problem is :
its is not giving any output.
while i am using fgrep -f pattern_file_name file
it is showing all... (4 Replies)
Hello Guys ,
I am trying to run below in one of my script but unable to get it succeed .
Can anyone help me on this?
I am using HP-UX.
if
then
write_log " Both files are present . Mail will be send to respective teams."
EMAIL_SUBJECT="MGCA - File Extraction Process COMPLETED"... (12 Replies)
Discussion started by: himanshu sood
12 Replies
LEARN ABOUT FREEBSD
badsect
BADSECT(8) BSD System Manager's Manual BADSECT(8)NAME
badsect -- create files to contain bad sectors
SYNOPSIS
badsect bbdir sector ...
DESCRIPTION
The badsect utility makes a file to contain a bad sector. Normally, bad sectors are made inaccessible by the standard formatter, which pro-
vides a forwarding table for bad sectors to the driver. If a driver supports the bad blocking standard it is much preferable to use that
method to isolate bad blocks, since the bad block forwarding makes the pack appear perfect, and such packs can then be copied with dd(1).
The technique used by this program is also less general than bad block forwarding, as badsect cannot make amends for bad blocks in the i-list
of file systems or in swap areas.
On some disks, adding a sector which is suddenly bad to the bad sector table currently requires the running of the standard DEC formatter.
Thus to deal with a newly bad block or on disks where the drivers do not support the bad-blocking standard badsect may be used to good
effect.
The badsect utility is used on a quiet file system in the following way: First mount the file system, and change to its root directory. Make
a directory BAD there. Run badsect giving as argument the BAD directory followed by all the bad sectors you wish to add. (The sector num-
bers must be relative to the beginning of the file system, but this is not hard as the system reports relative sector numbers in its console
error messages.) Then change back to the root directory, unmount the file system and run fsck(8) on the file system. The bad sectors should
show up in two files or in the bad sector files and the free list. Have fsck(8) remove files containing the offending bad sectors, but do
not have it remove the BAD/nnnnn files. This will leave the bad sectors in only the BAD files.
The badsect utility works by giving the specified sector numbers in a mknod(2) system call, creating an illegal file whose first block
address is the block containing bad sector and whose name is the bad sector number. When it is discovered by fsck(8) it will ask ``HOLD BAD
BLOCK ?''. A positive response will cause fsck(8) to convert the inode to a regular file containing the bad block.
DIAGNOSTICS
The badsect utility refuses to attach a block that resides in a critical area or is out of range of the file system. A warning is issued if
the block is already in use.
SEE ALSO fsck(8)HISTORY
The badsect utility appeared in 4.1BSD.
BUGS
If more than one sector which comprise a file system fragment are bad, you should specify only one of them to badsect, as the blocks in the
bad sector files actually cover all the sectors in a file system fragment.
BSD June 5, 1993 BSD
10-22-2010
