csh_lab.md

Unix Scripting Lab

Part 1: Getting Parameters

1. Take a directory name and a file name. Create the directory and then create the file inside.
2. Take a user name and print all processes from that user
3. Write a shell script that reads a file name from the user, prints its contents and the number of lines in the file.

Part 2: Conditionals

5. Write a shell script that asks the user for a number, if the user chooses 7 - print "You Win".
6. Write a shell script that takes two file names, and prints the contents of the larger one.
7. Write a shell script that reads a file name from the user, checks that the file is valid, and lowecases its name. For example, running lc MyFile should rename the file MyFile to myfile (Hint: use tr).

Part 3: Loops

1. Write a shell script that takes a file name and prints the file double spaced

2. Write a shell script that takes a file name and prints only even lines

3. The command "unzip" extracts contents of a zip file. Write a shell script that unzips all zip files in a directory

4. write a shell script that takes several file names as inputs, and copies itself to each of the files. Also change permissions of target files to executables.

5. Write a shell script that counts the number of files in each directory and print each directory name and its file count Sample output:

    dir = ., files = 12
    dir = ./a b, files = 0
    dir = ./bar, files = 0
    dir = ./foo, files = 2