What is the difference between Sleep and Wait in Linux ?

Anand Trimbake

• Nov 22nd, 2011

The wait command man page simply states that it pauses script execution until a specified process ID completes.

The man page for the sleep command is a single line stating that it causes a script to pause for specified period of time.

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kamalkvp

 Profile Answers by kamalkvp Questions by kamalkvp

• Dec 22nd, 2011

9

Prasanna Natta

• Aug 11th, 2011

We need root access to kill the process.But have to check before killing process whether it is using by any user and importance of that process.

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Creating file system with already created LV and and without LV.. What is the difference between these two??

sreemon

• Jan 4th, 2012

In computer storage, logical volume management or LVM provides a method of allocating space on mass-storage devices that is more flexible than conventional partitioning schemes. In particular, a volum...

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SELLAPPA SIVAKUMAR

• Jan 6th, 2012

Kernel - The kernel is the main component of most computer operating systems. - It is a bridge between applications and the actual data processing done at the hardware level - The kernel is the heart ...

Swayam Shah

• Sep 7th, 2006

Unix was developed using ?C? Language. Unix was the foundation on which Linux was built. Unix has Character based environment while Linux has Graphical as well as Character based environment. Unix has...

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Assume that you are NOT currently in your home directory. Enter a command to copy all files in your home directory beginning with the letter 'a' to the current directory.

sirisha

• Apr 30th, 2012

Cp [a]* /export/home/

Tdolby

 Profile Answers by Tdolby Questions by Tdolby

• Dec 12th, 2010

Cp ~/a* .

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What is the number of masked code ee@?

Bharath Yadlapalli

• May 2nd, 2012

When kill -3 command is executed, it will quit from executing the process and additionally it will dump core for that process mentioned with pid.

Sandhya.Kishan

 Profile Answers by Sandhya.Kishan Questions by Sandhya.Kishan

• Apr 10th, 2012

022 is the number of mask code ee@.

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How will you print TATA alone from TATA POWER using string copy and concate commands in C?

Sandhya.Kishan

 Profile Answers by Sandhya.Kishan Questions by Sandhya.Kishan

• Jun 15th, 2012

Include
#include
#include

int main()
{

char myString[] = "TATA POWER";
char output[10];

strcpy(output,myString);
output[4] = ;

printf("OUTPUT :%s
", output);
printf("ORGINAL STRING :%s", myString);

getch();
}

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what is vlan in vio server in aix ? What is its main purpose ?

Sandhya.Kishan

 Profile Answers by Sandhya.Kishan Questions by Sandhya.Kishan

• Jul 11th, 2012

VLAN stands for virtual LAN,it is a broadcast domain created by switches.With VLANs, a switch can create the broadcast domain.The purpose of VLANS is to improve network performance by separating large broadcast domains into smaller ones.

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Sandhya.Kishan

 Profile Answers by Sandhya.Kishan Questions by Sandhya.Kishan

• Jul 11th, 2012

Some parameters are
1.mod_rewrite
2.WLLogFile
3.DebugConfigInfo
4.StatPath
5.CookieName
6.MaxPostSize
7.FileCaching

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kiran78

 Profile Answers by kiran78 Questions by kiran78

• Jul 20th, 2012

Kill -3 pid find the thread dump jvm process

Pranaw

• May 6th, 2012

Kill -3 pid is used to create thread dump for the process id. This is basically used for troubleshooting and to understand what went wrong with the above process. Suppose some node of weblogic is not ...

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Shell variables are special variables, a name-value pair created and maintained by the shell. Example: PATH, HOME, MAIL and TERM

rupesh kumar

• Dec 17th, 2013

Shell variables are special variables, a name-value pair created and maintained by the shell. Example: PATH, HOME, MAIL

poornimay

 Profile Answers by poornimay Questions by poornimay

• May 22nd, 2008

These are some more variables    .......$PWD,  $DIR_COLORS,  $SHELL,  $SHLVL

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when we give Boot cdrom -s which CD should be there inside cdrom ?

Jerry Gallagher

 Profile Answers by Jerry Gallagher Questions by Jerry Gallagher

• Jan 4th, 2014

When issuing the boot cdrom -s the system install disk should be in the cdrom drive. Booting this way will allow you to boot in single user mode and hopefully repair a system.

tushar

• Jan 10th, 2013

For Booting cd in CD Rom the command is :

mount cd-rom/mount

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You have to store data on the system which command will you use(a) fread(b) fwrite(c) read(d) write

Jerry Gallagher

 Profile Answers by Jerry Gallagher Questions by Jerry Gallagher

• Jan 4th, 2014

The header to this question is wrong. This is not a unix command it should be titled "C library function to store data in a file".

The answer would then be (a) fwrite.

fwrite is not operating system specific and will work the same on Unix or Windows.

hanumant

• Jul 18th, 2013

(d) write

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Jerry Gallagher

 Profile Answers by Jerry Gallagher Questions by Jerry Gallagher

• Jan 4th, 2014

The root directory of disk also known as the MBR or the GUID partition is at a fixed location with replicas distributed at additional locations on the system disk determined by size.

anu

• Aug 1st, 2013

Fread.This commands reads a file and stores the file in the given folder of disk.

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arbin pun

• Feb 1st, 2014

Segmentation eliminates internal fragmentation, but it suffers from external fragmentation. Since process is broken into a number of smaller process external fragmentation should be less. partitions...

amit.bansal07

 Profile Answers by amit.bansal07 Questions by amit.bansal07

• Aug 4th, 2009

Memory Partitioning- means partitioning the memory into small units or blocks & load the data or code into the blocks, & use this data & code when required by a process.Paging- i...

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Explain any precautions needs to be take before you do soft mount

kabilan

• Mar 21st, 2014

An NFS file system that is mounted with the soft option returns an error if the server does not respond. The hard option causes the mount to continue to retry until the server responds. The default is hard

if you want to do soft mount try this cmd ln -s

Arjun

• Feb 13th, 2013

Ln -s

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1. Output of who should be displayed on the screen with value of total number of users who have logged in displayed at the bottom of the list.2. Output of ls should be displayed on the screen and from this output the lines containing the word ‘poem’ should be counted and the count should be stored in a file. 3. Contents of file1 and file2 should be displayed on the screen and this output should be...

praveen

• Apr 11th, 2014

1. Output of who should be displayed on the screen with value of total number of users who have logged in displayed at the bottom of the list. Ans: who | tee users.txt && who | wc -l 2. Output of ls...

santosh

• Mar 20th, 2012

Who;echo "Total number of users: "`who|wc -l`

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Vinil

• Aug 27th, 2014

Using "sar" command also

kiran78

 Profile Answers by kiran78 Questions by kiran78

• Jul 20th, 2012

TOP command and prstat -a

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Explain if semaphore variable is different from ordinary variable ?

Gaurav.khurana

 Profile Answers by Gaurav.khurana Questions by Gaurav.khurana

• Apr 19th, 2015

It can have only positive whole number
It has only two operations wait and signal
Shared across multiple process , but single process has exclusive access to resources via it

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anil

• May 3rd, 2015

By $#

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