Answer / bichitra kumar

Special character like %,$,&,? are taken differently in
unix as they have some different meaning and use.

backslash (\) is used to mask the special meaning of these
special character immidietly following it.

example is grep 'hello\.gif' file
Here \ is used to mask . as it will show the hidden file in
unix directory.

Double Quotes( "" )-- Anything enclose in double quotes
removed meaning of that characters (except \ and $).

example: %echo "Today is date"
Today is date

Single quotes( '' )--Enclosed in single quotes remains
unchanged.

Back quote( `` )--To execute command

%echo "Today is `date`"
Today is Mon Aug 11 05:33:46 EDT 2008

Explain about non-login shell files?

0 Answers  

---

What are the Different types of shells?

5 Answers  

---

What is shell and terminal?

0 Answers  

---

give me some website where i can get unix and testing meterials

1 Answers  

---

I want to read all input to the command from file1 direct all output to file2 and error to file 3, how can I achieve this?

1 Answers  

---

Shifting positional parameter in Linux fedora core ? Hi I have written following shell script for display value of positional. But in 11th and 12 field will display without shifting command. May I know is it advance of Linux of programming code error? #!/usr/bin/bash echo "Bellow is the out of ps command" echo "`ps`" echo "The passing Parameter i.e output of \$1,2... value is:==> $11 " echo "Total number of passed argument \$# is:==> $#" echo "Passed argument names (\$*) are:==>$*" echo "This script PID(\$$) is :=>$$" echo "The name of executing script(\$0) is :==>$0" echo "The Parent ID of this script(\$PPID) is:==>$PPID" And my input to this script is ./scriptname arg1 arg2 arg3 arg4 arg5 arg6 arg7 arg8 arg9 arg10 arg11 arg12 Output Is Bellow is the out of ps command PID TTY TIME CMD 2892 pts/0 00:00:00 bash 3172 pts/0 00:00:00 positional_para 3173 pts/0 00:00:00 ps The passing Parameter i.e output of $1,2... value is:==> arg11 Total number of passed argument $# is:==> 13 Passed argument names ($*) are:==>arg1 arg2 arg3 arg4 arg5 arg6 arg7 arg8 arg9 arg10 arg11 arg12 arg13 This script PID($$) is :=>3172 The name of executing script($0) is :==>./positional_parameter The Parent ID of this script($PPID) is:==>2892 After the ps output please see the next line I.e $11 value comes out without shifting the parameter. How is it give me my friends

0 Answers  

---

What is sh in shell script?

0 Answers  

---

How are shells born?

0 Answers  

---

what is "umask"?

6 Answers   Wipro,

---

How do scripts work?

0 Answers  

---

What can scripts do?

0 Answers  

---

What is the command for " how many shell is running in your system or how many shell supported by your system " ?.

3 Answers  

---