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awk - Text Processing

Learn to extract and process structured text data with awk.

Step 1

Use awk to print just the first field (word) from each line of names.txt.

Type: awk '{print $1}' documents/names.txt

awk '{print $1}' documents/names.txt

Step 2

Use awk with -F to set comma as field separator and print the second column of sales.csv.

Step 3

Use awk with a pattern to find lines containing "ERROR" in access.log.

Step 4

Use awk with NR > 1 to skip the header row of sales.csv.

Step 5

Combine NR with field references to print line numbers with product and quantity from sales.csv.

Step 6

Use a BEGIN block to print a header before processing lines.