Learn AWK with Real Code Examples

Extracting columns from CSV files

Summarizing log file metrics

Counting occurrences of events

Reformatting text data

Building quick ETL transformations

Check quotes carefully in CLI one-liners

Escape special characters inside scripts

Verify field separators (-F)

Check file encodings

Debug using print statements

Test on actual input samples

Verify field splitting

Check regex edge cases

Validate output formatting

Test associative array logic

Run scripts with awk -f file.awk

Embed in shell scripts

Use as one-liners in pipelines

Automate reports via cron

Run inside Docker or CI systems

awk (POSIX)

gawk (GNU AWK)

mawk (fast interpreter)

nawk (new awk)

BusyBox awk

UNIX shell pipelines

sed, grep, cut, sort, uniq

Python for post-processing

cron jobs and automation scripts

CI/CD logs and reporting

Use -F for custom delimiters

Write multi-line AWK files instead of long one-liners

Chain AWK with grep/sed

Leverage printf for better output

Test regex patterns incrementally

Summarize log data with multiple conditions

Reformat CSVs with calculated fields

Build a mini ETL pipeline

Count unique items with associative arrays

Generate multi-column output reports