UXSYS11

DATES:

1. UNIX and Linux Concepts
   • Create a file using the concatenate and redirect commands.
   • Move and rename files provided by the instructor.
   • Create, use, and delete directories.
2. UNIX Regular Expressions
   • Use sed and grep utilities to code regular expressions.
3. grep Command
   • Create grep scripts; run the grep scripts in both the foreground and background.
4. attributes of a UNIX Filter
   • Count the number of files that start with the letter 'a'.
   • Ascertain whether the user 'dave' is logged on.
   • Print the ten most popular words in the file 'mysite.html':
5. Common UNIX Filters
   • Encrypt and decrypt a file with the tr command.
   • Compare the lines which are common to the sorted files file1 and file2.
   • Find all the files that have been created in the last two weeks.
6. Shell Basics
   • Create shell scripts that run the supplied program for several parameter sets.
   • These scripts ensure that the results of a program run with a specific parameter set with names that correspond to the last parameter in the parameter set.
7. Creating Working with Tools
   • Code a script which uses several utilities to build a file manipulation tool.
8. awk as a Flexible Search Tool
   • Use the escape sequence for searching records in a file.
   • Print every line that has at least one field.
   • Print the total number of bytes used by files.
   • Print the total number of kilobytes used by files.
9. Creating Long awk Scripts
   • Code an awk script called listsh which will print out the user ID and the name of the login shell for each user with an account on the system.
   • The OFS will be two tab characters.
10. Advanced awk Capabilities
    • A simple CSV file is compromised of fields separated by commas; the commas can not appear anywhere else in the file.
    • CSV files can be parsed using FS=’,’.
    • Read the CSV file provided by the instructor.
    • Store the content into an array.
    • Sort the array and write the array to a file.