Microsoft Word Lab Exercises. Doc

 

2.  Write a shell program which accepts the name of a file from the standard input and then performs 

the following test on it. 

 

 

• 

File Existence 

 

• 

File Readable and Writable 

3.  Write a shell program to perform a simulated cp command. Proceed this program using positional 

parameter and the usage will be on the form of copy   and ensure that 

parameters are properly used. 

 

4.  Write a shell program to convert all lowercase letters in a file to uppercase letter. 

 

5.  Write a shell program for file contains records ith each record containing name and city, name of 

state and name of country. How would you sort this file with country as the primary key and state 

the secondary sort key. 

---

Lab Exercises 

 

Centre for Information Technology and Engineering, Manonmaniam Sundaranar University 

3 

Lab 4