LinuxCBT Awk & SedEdition focuses on the common Linux | Unix text transformation utilities: Awk & Sed.
Awk & Sed are critical to efficiently parsing textual data (log file
contents, data feeds, file & directory listings, etc.). Awk provides field (Column) processing
and reporting, whereas Sed facilitates streams (Automated Text Editing) processing. Both support interactive and
non-interactive (scripted) execution.
Let LinuxCBT Awk & Sed Edition cost-effectively teach you automated field and streams processing.
Recommended Prerequisites for:
- Any LinuxCBT Operating System Course (Classic/EL-4/SUSE/Debian Editions)
- Open mind & determination to master Linux and related open-source applications
- Access to a Linux, Windows or GNU Awk & Sed-compatible system to follow the exercises
LinuxCBT Scripting Edition - Awk & Sed - Module VI
- Introduction - Features
- Discuss course outline
- Explore system configuration
- Identify key systems
to be used
- Install the Bluefish graphical editor - Supports POSIX and PERL-compatible RegExes
- Discuss features common and distinct to: Awk and Sed
- Regular Expressions Review
- Enumerate important metacharacters
- Provide examples of quatinfier usage
- Apply simple character classes
to searches
- Perform searches in the Bluefish editor using
literals and metacharacters
- Explain and apply anchors: '^', '$'
- Intro to Sed - Stream Editor
- Discuss features and applications
- Explain general usage syntax
- Print specific lines from input
- Delete specific lines from input
- Match streams using RegExes
- Search for ranges of text using line numbers and text ranges
- Save transformed output
- Sed - Search & Replace
- Discuss features
and applications
- Discuss Left-hand and Righ-hand side (LHS | RHS) sections in search & replace actions
- Acquire input from: STDIN, PIPES and Files and transform according to criteria
- Backup and overwrite source files using Sed one-liners
- Perform substitutions based on matched addresses
- Reuse matched strings in replacement output
- Perform text substitutions across multiple files
- Perform multiple replacements in one command
- Apply substitutions globally across all matches
- Sed - Scripts
- Discuss features and applications
- Explain general usage syntax
- Create script to remove blank lines from input stream
- Create script to make general substitutions
- Perform case-insensitive replacements via Sed script
- Insert strings into desried location in the input stream via Sed script
- Strip trailing numeric values from input stream via Sed script
- Apply changes to multiple files
- Save scripts for reuse
- Intro to Awk - Field Processor & Reporter
- Discuss features and benefits
- Explain general usage syntax
- Print full lines from input
- Print desired fields from input
- Match patterns using RegExes
- Control the input field | column delimiters
- Save output
- Awk - Scripts
- Discuss features and benefits
- Explain structure of Awk scripts
- Implement BEGIN and END blocks
- Parse system files using Awk script
- Awk - Variables
- Discuss features and applications
- Enumerate and discuss key Awk system variables
- Increment counters based on matched patterns using Awk
- Explain variable concatenation
- Explore arrays (lists of values)
- Create arrays using the split function
- Awk - Operators
- Discuss features and applications
- Explore Boolean and Relational operators
- Discuss looping strategies
- Evaluate conditional testing using system variables
- Evaluate results
- Awk - Process Records
- Discuss features
and benefits
- Define and evaluate multiple input field separators with files with mixed delimiters
- Normalize output by controlling the Output Field Separator (OFS)
- Extract records from system file and evaluated
- Account for number of processed and matched records in END block
- Awk - Print Formatting
- Discuss features and applications
- Compare and contrast 'print' and 'printf' output formatting
- Discuss 'printf' supported data types
- Evaluate 'printf' application in reporting
- Awk & Sed - Various Examples
- Discuss features and applications
- Parse and cleanup HTML and PHP files with Sed & Awk
- Replace values in system file with Awk
- Evaluate results
- Awk & Sed - Win32
- Discuss features and benefits
- Download and install Awk & Sed for Win32
- Transfer Linux files to Windows
- Test various parsing and substitution on Linux files
- Evaluate results
- Sed - File Name Transformations - Batch
- Enumerate poorly-named files for transformation
- Identify key replacement strings for regular expressions match
- Define
and apply regular expressions for transformations
- Transform prefixes and suffixes
- Evaluate results
- Awk - E-Mail Address Parsing
- Generate sample data set
- Define regular expressions patterns for transformation
- Transform sample data
- Evaluate results
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