A naukri.com initiative
LinuxHint
2w
302
awk Command in Linux
- The awk command in Linux is a versatile tool used for advanced pattern scanning, data extraction, and text manipulation, serving as a scripting language.
- It is superior to grep and cut as it offers built-in variables, loops, conditions, arrays, and functions that its competitors lack.
- The syntax of the awk command follows the format: awk 'pattern {action}' file.
- awk is used for various operations like pattern scanning, text filtration, data extraction, file processing, mathematical calculations, formatted output, and system monitoring.
- The command supports functions like print, column selection, data range retrieval, field value updates, and processing multiple files simultaneously.
- Operators like regular expressions can be used with awk to match specific patterns or words and perform operations based on the matches.
- Different variables such as NR, NF, FS, FNR, OFS, and ORS are available in awk for effective data processing and manipulation.
- Advanced awk examples include finding the largest field, calculating field value sums, determining maximum values in columns, and counting word occurrences.
- awk can be used in conjunction with other Linux commands like grep and sed for enhanced text manipulation and analysis tasks.
- Various built-in functions in awk like length(), substr(), split(), tolower(), toupper(), int(), sqrt(), srand(), and rand() offer additional capabilities for data processing.
Read Full Article
18 Likes
For uninterrupted reading, download the app