what are special characters and explain how does text
varies by the usage of single quotes,double quotes and back
quotes?
- 1 Answers
- 5688 Views
- I also Faced
- E-Mail Answers
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 |
Which scripting language is best for automation?
What does it mean by #!/Bin/sh or #!/Bin/bash at the beginning of every script?
Explore about environment variables?
Why we are writting shell scripts? Plz if possible explain it briefly.
How to print pid of the current shell?
Hi All, Is it possible to create one file name only space or space in file name in UNIX and we can able to run that on Unix?
What is shell chemistry?
I want to connect to a remote server and execute some commands, how can I achieve this?
How do I stop script errors?
on “sed” command EmpData(Sample Database) 1122|j.b. saxena |g.m. |account |12/12/52|6000 2233|n.k. gupta |d.g.m |sales |31/12/40|9000 4545|anil agarwal |director |account |06/07/47|7500 5656|lalit choudhury |executive|marketing|07/09/50|5000 1265|chanchal singhvi|g.m. |admin |12/09/63|6000 0110|shyam saksena |chairman |marketing|12/12/43|8000 5566|jai sharma |director |account |23/12/89|7000 7733|jayant |d.g.m |sales |29/02/70|6000 1. From the above database substitute the delimiter of first 3 lines with “ : “ 2. From the above database substitute the delimiter with “ : ” 3. Insert the string “ XYZ Employees” in the first line. 4. Store the lines pertaining to the directors, d.g.m and g.m into three separate files. 5. Using address store first 4 lines into a file Empupdate. 6. Find the pattern “account” in the database and replaces that with “accounts”. 7. Select those lines which do not have a pattern “g.m”. 8. Insert a blank line after every line in the database.
How do I run a powershell script?
How can the contents of a file inside jar be read without extracting in a shell script?
ASP 
