Answer / sumit

Environment variables are a set of dynamic named values
that can affect the way running processes will behave on a
computer.

Answer / chakri

c shell sopports environmenal variable. different types of
environment variables are HOME,PATH,TERM,SHELL.....ETC.,

Answer / usama el far

a set of variables which affect the commands execution and
hold many values it need.some times we need to change it /
some times by scripts / programs

Answer / giridhar tarare

Environment variable are a set of variable and you can
change the value anytime or you pass any value given
Variable.

what is the cmd to display the last exit status in UNIX?

5 Answers   MEIT, Syntel,

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What command will bring user back to their home directory in UNIX?

13 Answers   IBM, Wipro,

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what is the use of nice command?

4 Answers  

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How to redirect standard error to a file?

2 Answers  

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what is the command to list all files in a directory, including the hidden files in UNIX ?

9 Answers   CTS,

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how to find largest file?

14 Answers   HCL, Microsoft, Thomson Reuters,

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How can we use grep command in unix?

0 Answers  

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What is a shell in Unix? Name some common Unix shells.

2 Answers  

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When i run a programm of orphan process. Instead of getting child's parent (ppid)=1 ..i get 1400 and it varies as per system. How can i findthe right soluion??? My pgm: #include<stdlib.h> # include <stdio.h> int main() { int pid; pid=fork(); if(pid < 0) {exit(-1);} else if(pid==0) { printf("Child Process is Sleeping ..."); sleep(10); printf("Orphan Child's Parent ID : %u ",getppid()); } else { printf("Parent Process Completed ... %u ",getpid()); exit(0); } return 0; } Output:

0 Answers  

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how to unzip the contents of the gzip file

1 Answers   Epsilon,

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Suppose 1000 processes are running on the system out of those if you have to show only certain process ids which command will you use?

5 Answers  

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What is the difference between a hard link and a soft link in Unix?

1 Answers  

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