what are special characters and explain how does text
varies by the usage of single quotes,double quotes and back
quotes?
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
| Is This Answer Correct ? | 3 Yes | 0 No |
How can I send a mail with a compressed file as an attachment?
How do I read a .sh file?
how do you write sql queries using shell script for eg:- we have databae table like EMPNO,ENAME,SAL,DEPTNO columns in EMP table how you display EMPNO,SAL FIELDS from emp in SHELL SCRIPT please explain with an example
Create a bash shell script that removes all files whose names end with a "~" from your home directory and subdirectories. Name this script "cleanup.sh"
What are the four fundamental components of every file system on linux?
What lives in a shell?
What is console line?
Rewrite the command to print the sentence and convert the variable to plural: echo “i like $variable”.
c program the catches the ctrl-c(SIGINT) Signal for the first time and prints a output rather and exit on pressing Ctrl-C again
What is subshell?
What is the use of "$#" in shell scripting?
How will I insert a line "abcdef" at every 100th line of a file?