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Tutorial11: Sed & Awk Utilities

108 bytes added, 10:11, 4 March 2021
Using the awk Utility
* Action to be executed is contained within braces '''{}'''
* The '''print''' command can be used to display text (fields).
* You can use parameters which represent fields within records (lines) within the expression of the awk utility.* The parameter $0 represents all of the fields contained in the record (line).
* The parameters $1, $2,$3 … $9 represent the first, second and third to the 9th fields contained within the record.
* Parameters greater than nine requires the value of the parameter to be placed within braces (for example: ${10},${11},${12}, etc.)���* There are built-in variables that can be used in the awk expression (for example: '''NR''', '''NF''', '''FILENAME''', etc.)
* You can use the '''-F''' option with the awk command to specify the field delimiter.
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