# Grep (Searching Pattern)

```bash
#!/bin/bash

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

# Basic Recursive Search:
# Searches for the specified word in all files within the current directory and its subdirectories.
grep -r "$SEARCH_WORD" .

# Recursive Search with Line Numbers:
# Similar to the above, but includes the line numbers where the word is found.
grep -rn "$SEARCH_WORD" .

# List Only Filenames with Matches:
# Displays only the filenames of the files that contain the specified word, without showing the lines.
grep -rl "$SEARCH_WORD" .

# Case-Insensitive Search:
# Searches for the word without considering case (e.g., "Word", "word", "WORD" will all match).
grep -rin "$SEARCH_WORD" .

# Search Specific File Types (e.g., .txt files):
# Limits the search to files with a specific extension or pattern.
grep -rn --include=\*.txt "$SEARCH_WORD" .

# Exclude Specific Directories:
# Excludes certain directories from the search (e.g., 'dir_to_exclude').
grep -rn "$SEARCH_WORD" . --exclude-dir='dir_to_exclude'

# Combined Example:
# A case-insensitive search for the word in all .txt files, excluding a specific directory.
grep -rin --include=\*.txt "$SEARCH_WORD" . --exclude-dir='dir_to_exclude'

```

```
```


---

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