UNIX Interview Questions

At a fixed location on the system disk

2.at a fixed location on the disk

Compress or expand files.

Syntax
gzip [ -acdfhlLnNrtvV19 ] [-S suffix] [ name ... ]
gunzip [ -acfhlLnNrtvV ] [-S suffix] [ name ... ]
zcat [ -fhLV ] [ name ... ]

Example:
gzip myfile

or using

compress [-c] [-f] [-v] filenames

Example: compress -v bigfile.exe

By using tar, compress, zip

ln -s

For Booting cd in CD Rom the command is :

mount cd-rom/mount

A bootinfotable cd should be inside the cdrom when we give boot cdrom -s.

-e option tells echo to consider the escape sequences in the statement.

e.g. echo "Without hyphen e option
It will be the same"
Output :: Without hyphen e option
It will be the same

echo -e "With hyphen e option
It will be different"
Output :: With hyphen e option
It will be different

$ df -k|grep "1[0-9]%"
O/p:
2031440 342300 1584284 18% /
3047184 392216 2497684 14% /opt
190403 31064 149509 18% /osmf/mgmt/scheduler
3047184 391464 2498436 14% /var
/dev/cciss/c0d0p1 101086 15970 79897 17% /boot

#!/bin/ksh +x


df -kl|grep "<8[0-9]%>" > dfout.log
df -kl|grep "<9[0-9]%>" >> dfout.log
df -kl|grep "100%" >> dfout.log

These are following ways to jump to the Home directory
1. cd
2. cd ~
3. cd ~
4. cd ${HOME}

This is a vague question, so I'll provide multiple answers.1. Home differs on various flavors of UNIX, but standard for most is: /home.  To change directory to the Home directory, you would i...

Chown ownername file r directory name

use ::: chown command

TOP command and prstat -a

By using "TOP"command we can see the CPU utilization. also u can ping the "sar" command

kill -3 pid find the thread dump jvm process

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 ...

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

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.

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();
}

022 is the number of the masked code ee@

If all you want to do is get rid of that file, as I did, just save a known file, like a dummy text file, with that same name and overwrite the existing file. I replaced my errant directory file with a...

When a file or directory is created the default permisions inherited .they arefor files :666for dir: 777Actually it is not the file permission .the "umask" value is subtracted from these def...

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.

022 is the number of mask code ee@.

cp [a]* /export/home/

cp ~/a* .

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

Ans for question 1

echo `who`\n the number of users logged in is `who | wc -l`

echo $http_proxy

ifconfig

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 ...

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...