Bash Shell Scripting- Introduction to AWK scripting

The video provides an introduction to AWK scripting, covering basic command syntax, the use of patterns and conditions, and scripting options. It explains the syntax for AWK scripting, including begin, actual, and end actions, and demonstrates how to execute AWK scripts. The video emphasizes the importance of having at least one action in an AWK script and discusses the use of the -F option for handling lengthy logic.

What is the basic structure of an AWK command?

• awk pattern, file, options, action

• awk options, pattern, action, file

• awk file, action, pattern, options

• awk action, file, pattern, options

How can you provide input to an AWK command?

• Through a network socket

• Through a file or a pipeline

• Only through a pipeline

• Only through a file

What happens if no pattern or condition is specified in an AWK command?

• The action is performed on the first line only

• The action is performed on every line

• The action is performed on the last line only

• The action is not performed at all

What additional actions can be included in AWK scripting?

• BEGIN and END actions

• Init-action and final-action

• Start-action and stop-action

• Pre-action and post-action

When is the BEGIN block executed in an AWK script?

• After processing the file

• Before reading the file

• During the processing of the file

• At the end of the script

What is required for an AWK script to run?

• At least one condition

• At least one file

• At least one pattern

• At least one action

What is the purpose of the END block in an AWK script?

• To handle errors

• To read input data

• To execute logic after processing the file

• To initialize variables

How can you execute a lengthy AWK logic?

• By splitting it into multiple AWK commands

• By using a different scripting language

• By writing it in a separate file and using -F option

• By writing it directly in the command line

What is the role of the -F option in AWK scripting?

• To specify the script file

• To specify the output format

• To specify the input file

• To specify the field separator

What should you remember before writing an AWK script?

• The standard syntax

• The output format

• The command line options

• The file format