A shell provides advanced capabilities such as variables, redirection of I/O and setup of pipelines and the management of jobs.

• To utilize convenient advanced features of the shell.

• Manage background jobs
  1. The commands fg, bg, jobs
  2. The meaning of the & character
• Describe the input and output channels
  1. 1, 2
• Redirect input and output from/to files
  1. «, <, >, », &
• Design a pipeline for the processing of data using the pipe (|) symbol
• Assign and using shell variables and the export command
• Perform arithmetic operations on variables
• Replace the beginning or end of text in the shell using the ${} notation
• Use widely available tools to understand and manage program execution
  1. top
  2. ps (-a, -u, -x)
  3. history
  4. which
• Use tools to search for relevant information and their arguments
  1. grep (-i, -v, -e)
  2. cut (-b, -c, -f, -d)
  3. sort (-r, -n, -k)
  4. sed (for the basic search command and regular expressions)