what does this symbol ~ represent in unix for example....
If i create directories called personal and lab and lab5 and the command chmod 776~/lab5 is issued. What results would i expect to get. basically i know that chmod 776 would prevent others from executing the files in the directory but... (2 Replies)
Hi ,
i have few doubts about the braces and spaces which are quite often used:
for instance:
when i try the belo command it will not work
export variable= cat filename
rather when i try the cat command without any space it works fine
export variable=cat filename
and... (3 Replies)
Many scripts are executed in the following way.
. /scriptname
Even when the file does not have execute permission, it can be executed this way. How does this work? (6 Replies)
Hi,
I am a newbie in unix shell scripting and I am trying to understand the result of the following line :
ls -l $1*$4*ready
I understand the ls-l but the rest is just really confusing. Any help would be appreciated.
TIA (3 Replies)
Hello... I am getting ready to create a bunch of groups for several of our servers all of which are running Aix 5.3. We really want to keep people away from using the root login and as such the systems have been hardened using aixpert and if it is absolutely needed people must su -.
There are... (1 Reply)
What is the significance of the forward slash(/) while specifying a directory?
cp -av /dir/ /opt/
and
cp -av /dir /opt
Does effectively the same job it seems? (2 Replies)
I'm taking a LINUX and UNIX class and we are using bash as the shell in terminal. On my mac-book I use zsh only because my professor had a pretty cool start-up file for it.
It has benefited me in becoming familiar with different shells. However, I'm having a hard time understanding the purpose... (4 Replies)
Discussion started by: syregnar86
4 Replies
LEARN ABOUT CENTOS
mkfs
MKFS(8) System Administration MKFS(8)NAME
mkfs - build a Linux filesystem
SYNOPSIS
mkfs [options] [-t type] [fs-options] device [size]
DESCRIPTION
mkfs is used to build a Linux filesystem on a device, usually a hard disk partition. The device argument is either the device name (e.g.
/dev/hda1, /dev/sdb2), or a regular file that shall contain the filesystem. The size argument is the number of blocks to be used for the
filesystem.
The exit code returned by mkfs is 0 on success and 1 on failure.
In actuality, mkfs is simply a front-end for the various filesystem builders (mkfs.fstype) available under Linux. The filesystem-specific
builder is searched for in a number of directories, like perhaps /sbin, /sbin/fs, /sbin/fs.d, /etc/fs, /etc (the precise list is defined at
compile time but at least contains /sbin and /sbin/fs), and finally in the directories listed in the PATH environment variable. Please see
the filesystem-specific builder manual pages for further details.
OPTIONS -t, --type type
Specify the type of filesystem to be built. If not specified, the default filesystem type (currently ext2) is used.
fs-options
Filesystem-specific options to be passed to the real filesystem builder. Although not guaranteed, the following options are sup-
ported by most filesystem builders.
-V, --verbose
Produce verbose output, including all filesystem-specific commands that are executed. Specifying this option more than once
inhibits execution of any filesystem-specific commands. This is really only useful for testing.
-V, --version
Display version information and exit. (Option -V will display version information only when it is the only parameter, otherwise it
will work as --verbose.)
-h, --help
Display help and exit.
BUGS
All generic options must precede and not be combined with filesystem-specific options. Some filesystem-specific programs do not support
the -V (verbose) option, nor return meaningful exit codes. Also, some filesystem-specific programs do not automatically detect the device
size and require the size parameter to be specified.
AUTHORS
David Engel (david@ods.com)
Fred N. van Kempen (waltje@uwalt.nl.mugnet.org)
Ron Sommeling (sommel@sci.kun.nl)
The manual page was shamelessly adapted from Remy Card's version for the ext2 filesystem.
SEE ALSO fs(5), badblocks(8), fsck(8), mkdosfs(8), mke2fs(8), mkfs.bfs(8), mkfs.ext2(8), mkfs.ext3(8), mkfs.ext4(8), mkfs.minix(8), mkfs.msdos(8),
mkfs.vfat(8), mkfs.xfs(8), mkfs.xiafs(8)AVAILABILITY
The mkfs command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
util-linux June 2011 MKFS(8)