# Awk (Searching Pattern)

<pre class="language-bash"><code class="lang-bash">#!/bin/bash

# Define the word to search for
SEARCH_WORD="your_word"

# Basic Search with awk:
# Searches for the specified word in all files within the current directory and prints the matching lines.
awk "/$SEARCH_WORD/" ./*

# Search with Line Numbers:
# Searches for the word and prints matching lines with their line numbers.
awk "/$SEARCH_WORD/{print FNR, \$0}" ./*

#-F fs
#-F specifies the field separator,
# where fs can be a single character or a regular expression.
awk -F, '{print $1, $2}' file.csv


# Case-Insensitive Search:
# Searches for the word ignoring case and prints matching lines.
awk 'tolower($0) ~ tolower("'"$SEARCH_WORD"'")' ./*

# Search Specific File Types (e.g., .txt files):
# Limits the search to files with a specific extension or pattern.
<strong>awk "/$SEARCH_WORD/" ./*.txt
</strong>
# Exclude Specific Directories (requires find command):
# First, find all files excluding the specified directory, then search with awk.
find . -type f ! -path "./dir_to_exclude/*" -exec awk "/$SEARCH_WORD/" {} +

# Search and Print File Name, Line Number, and Matching Line:
# A more complex command that prints the filename, line number, and the matching line.
awk "/$SEARCH_WORD/{print FILENAME, FNR, \$0}" ./*

# Case-Insensitive Search and Print Filename, Line Number, and Line:
# Combines case-insensitive search with filename and line number output.
awk 'tolower($0) ~ tolower("'"$SEARCH_WORD"'") {print FILENAME, FNR, $0}' ./*

</code></pre>


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