Answer / subbareddy

Each process in Unix has its own set of environment
variables. They're called environment variables because the
default set of such variables consists mostly of session-
wide variables used for configuration purposes.

From the point of a Unix shell though, environment
variables can be accessed the same way as any other
variable.

Common environment variables in Unix
Most well known environment variables are the following:

USER - username of a Unix user
HOME - full path to a user's home directory
TERM - terminal or terminal emulator used by a current user
PATH - list of directories searched for executable files
when you type a command in Unix shell
PWD - current directory

Answer / ashu

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

EX:

PATH,HOME,%TEMP%, date etc are environmental variables,

What is bash used for?

0 Answers  

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c program to check whether all the directories in the path exists has read and write permission

1 Answers  

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A file has multiple records each having three 30-bit long fields(field1,field2,field3).There is also a lookup file,LOOK_UP.dat.Now, we need to consider only the last ten digits of field1 and lookup the file LOOK_UP.dat. If there a match then field2 and field3 should replaced with corresponding data from the lookup file. otherwise that particular record,for which there is no match, should be stored in a seperate file.

2 Answers   Wipro,

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How to replace following lines, catch (DAOException e) { objLogger.error(this.getClass () + "addUpdateIssues() " + e); throw new BOException(5122); } catch (BOException e) { objLogger.error(this.getClass () + "addUpdateIssues() " + e); throw e; } catch (Exception e) { objLogger.error(this.getClass () + "addUpdateIssues() " + e); throw new BOException(5122); } Needs to be changed in to, catch (DAOException e) { AppException.handleException (null, null, e, null, null, null, "BOException", this.getClass() + "addUpdateIssues() ", null, null, null, null, null, null, null, null, 5122); } catch (BOException e) { AppException.handleException (null, null, null, e, null, null, "BOException", this.getClass() + "addUpdateIssues() ", null, null, null, null, null, null, null, null, 0); } catch (Exception e) { AppException.handleException (null, null, null, null, null, e, "BOException", this.getClass() + "addUpdateIssues() ", null, null, null, null, null, null, null, null, 5122); }

0 Answers   Wipro,

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how to print the 2-d, 3-d arrays in unix shell script programs please answer thi questio to my mail venusaikumar@gmail.com

0 Answers  

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How do I run a powershell script?

0 Answers  

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what do u mean by $#,$* in unix programming?

5 Answers   Convergys, TCS,

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How do scripts work?

0 Answers  

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shell script for reverse the string

0 Answers  

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Which shell is the best?

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What is an inode block?

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Determine the output of the following command: name=shubham && echo ‘my name is $name’.

0 Answers  

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