// Search for files containing the main character in the current directory and subdirectory
Grep "Main"./-R
Grep-IPattern files : Search case-insensitive. Case Sensitive by default,
Grep-lPattern files: Only list matching file names,
Grep-lPattern files: List unmatched file names,
Grep-WPattern files: Only match the entire word, not a part of the string(For example, match 'Magic 'instead of 'magical '),
Grep-CNumber pattern files: The matching context displays [number] rows respectively,
GrepPattern1|Pattern2 files: Show matchingPattern1OrPattern2,
GrepPattern1 files| GrepPattern2: Show matching
Pattern1Match againPattern2.
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// Search for files whose names contain xvim characters, including the current and subdirectories.
Find. | grep "xvim"
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Show only the current directory
Ls-D .*/