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UNIX for Dummies Questions & Answers
Need answer for these LINUX questions URGENT!!
Post 302526901 by linux17 on Thursday 2nd of June 2011 12:04:07 AM
06-02-2011
Need answer for these LINUX questions URGENT!!
I am very new to LINUX and could not find answer to these questions please submit your comments and suggestions to answer these questions.
Appreciate your time thank you,
1. Make sure there is no filename1.txt in current directory first. Now, enter vi with "vi filename1.txt" command. vi indicates that it is a new file. After you have completed entering text, you issue the VI command
:wq filename2.txt
to save and exit. Which file is created by VI editor? Explain.
2. Make sure there are no files called file1.txt and file2.txt in the current directory. Then, issue the following commands:
ln –s file1.txt file2.txt
ln –s file2.txt file1.txt
cat file1.txt
What is the error message you got? Explain why.
3. If you look at the permissions associated with a symbolic link, it has universal access. Does this lead to security issues? Why?
4. Review the man pages of ln, cp and mv commands. The synopsis section of the man pages contain the usage and the optional arguments are indicated within […]. From these 3 man pages, find out which command can work with just 1 argument. Give a sample usage and explain what it does.
5. Let us assume that Linux does not have .. entries in Linux directory structure. How will you cd to the parent directory of current directory? Note: Since current directory can be anything, you should give a generic answer (you should explain the process).
Appreciate your time thank you,
1. Make sure there is no filename1.txt in current directory first. Now, enter vi with "vi filename1.txt" command. vi indicates that it is a new file. After you have completed entering text, you issue the VI command
:wq filename2.txt
to save and exit. Which file is created by VI editor? Explain.
2. Make sure there are no files called file1.txt and file2.txt in the current directory. Then, issue the following commands:
ln –s file1.txt file2.txt
ln –s file2.txt file1.txt
cat file1.txt
What is the error message you got? Explain why.
3. If you look at the permissions associated with a symbolic link, it has universal access. Does this lead to security issues? Why?
4. Review the man pages of ln, cp and mv commands. The synopsis section of the man pages contain the usage and the optional arguments are indicated within […]. From these 3 man pages, find out which command can work with just 1 argument. Give a sample usage and explain what it does.
5. Let us assume that Linux does not have .. entries in Linux directory structure. How will you cd to the parent directory of current directory? Note: Since current directory can be anything, you should give a generic answer (you should explain the process).
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Last edited by Scott; 06-02-2011 at 09:46 AM.. Reason: Closed thread
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LEARN ABOUT NETBSD
fsck_msdos
FSCK_MSDOS(8) BSD System Manager's Manual FSCK_MSDOS(8) NAME
fsck_msdos -- DOS/Windows (FAT) filesystem consistency checker SYNOPSIS
fsck_msdos -p [-f] filesystem ... fsck_msdos [-fny] [-x snap-backup] filesystem ... DESCRIPTION
The fsck_msdos utility verifies and repairs FAT filesystems (more commonly known as DOS filesystems). The first form of fsck_msdos preens the specified filesystems. It is normally started by fsck(8) run from /etc/rc during automatic reboot, when a FAT filesystem is detected. When preening file systems, fsck_msdos will fix common inconsistencies non-interactively. If more seri- ous problems are found, fsck_msdos does not try to fix them, indicates that it was not successful, and exits. The second form of fsck_msdos checks the specified file systems and tries to repair all detected inconsistencies, requesting confirmation before making any changes. The options are as follows: -f This option is ignored by fsck_msdos, and is present only for compatibility with programs that check other file system types for consistency, such as fsck_ffs(8). -n Causes fsck_msdos to assume no as the answer to all operator questions, except ``CONTINUE?''. -p Preen the specified filesystems. -x snap-backup Use a snapshot with snap-backup as backup to check a read-write mounted filesystem. Must be used with -n. See fss(4) for more details. The point is to check an internally-consistent version of the filesystem to find out if it is damaged; on failure one should unmount the filesystem and repair it. -y Causes fsck_msdos to assume yes as the answer to all operator questions. SEE ALSO
fss(4), fsck(8), fsck_ffs(8), mount_msdos(8) BUGS
fsck_msdos is still under construction. BSD
April 11, 2010 BSD