How to locate files and folders on Linux systems

Environment

Linux systems (Ubuntu, Rocky Linux, etc.)

Issue

Locate files or folders on Linux systems

Find accidentally moved files or directories

Need to find recently modified files (e.g., files modified today or yesterday)

Resolution

Basic file and directory search

The find command is available on all Linux systems without additional installation. Basic syntax is: find [path] [options]

Search for files or directories by name:

$ # Search for files/directories named "report.txt" starting from current directory
$ find . -name "report.txt"
./project/report.txt
./backup/report.txt

$ # Search with wildcards (use quotes)
$ find . -name "*report*"
./documents/annual_report.pdf
./reports/monthly_report_2024.xlsx
./backup/old_reports/

$ # Case-insensitive search
$ find . -iname "*report*"
./documents/annual_report.pdf
./reports/Monthly_Report_2024.xlsx
./files/REPORT.txt

Note

The dot . means current directory. Use ~ to search from home directory, or / to search entire system (requires more time).

Search only files or only directories:

$ # Search only files
$ find . -type f -name "*report*"
./documents/annual_report.pdf
./reports/monthly_report_2024.xlsx

$ # Search only directories
$ find . -type d -name "*backup*"
./backup/old_reports/
./data/backup/

$ # Search for a directory named "data"
$ find . -type d -name "data"
./projects/data
./analysis/data
./archive/old_project/data

Search with file extensions:

$ # Find all Python files
$ find . -type f -name "*.py"
./scripts/process_data.py
./tools/helper.py

$ # Find all PDF files
$ find . -type f -name "*.pdf"
./documents/manual.pdf
./reports/summary.pdf

Finding recently modified files

Find files modified within a specific time period:

$ # Files modified in the last 24 hours (today)
$ find . -type f -mtime -1
./data/output.csv
./logs/application.log
./workspace/notes.txt

$ # Files modified in the last 7 days
$ find . -type f -mtime -7
./reports/weekly_summary.xlsx
./data/recent_analysis.csv

$ # Files modified more than 30 days ago
$ find . -type f -mtime +30
./archive/old_data.csv
./backup/legacy_files/document.txt

Note

-mtime -1 means modified less than 1 day ago (within last 24 hours)
-mtime +30 means modified more than 30 days ago
-mtime 7 means modified between 7 and 8 days ago

For more precise time control (minutes):

$ # Files modified in the last 60 minutes (1 hour)
$ find . -type f -mmin -60
./logs/application.log

$ # Files modified in the last 10 minutes
$ find . -type f -mmin -10
./workspace/current_work.txt

Combining search criteria

Combine name patterns with time filters:

$ # Find PDF files modified in the last day
$ find . -type f -name "*.pdf" -mtime -1
./reports/daily_report_2024-12-20.pdf

$ # Find Python files in scripts directory modified in last week
$ find ./scripts -type f -name "*.py" -mtime -7
./scripts/new_feature.py
./scripts/bugfix.py

$ # Find log files older than 7 days
$ find . -type f -name "*.log" -mtime +7
./logs/application.log.2024-12-01
./logs/access.log.old

Limit search depth:

$ # Search only in current directory (not subdirectories)
$ find . -maxdepth 1 -name "*report*"
./report.txt

$ # Search only 2 levels deep
$ find . -maxdepth 2 -type f -name "*.txt"
./notes.txt
./documents/readme.txt

Exclude specific directories:

$ # Exclude .git and node_modules directories. -prune is more efficient.
$ find . \( -path './.git' -o -path './node_modules' \) -prune -o -type f -name "*report*"
./src/report_generator.py
./docs/report_template.md

Practical examples for finding missing files

Common scenarios for locating files:

$ # Find all files modified today in home directory
$ find ~ -type f -mtime -1

$ # Find a file you worked on yesterday (more precise)
$ find ~ -type f -daystart -mtime 1 -name "*presentation*"

$ # Find all Excel files in home directory
$ find ~ -type f -name "*.xlsx" -o -name "*.xls"

$ # Find large files (bigger than 100MB) modified this week
$ find . -type f -size +100M -mtime -7

$ # Find files owned by specific user
$ find . -type f -user username

Root Cause

Files may appear missing on Linux systems due to:

Accidentally moved to different directory
Saved with slightly different name than expected
Located in unexpected subdirectory
Hidden files (starting with dot .)

The find command is a standard Unix tool that:

Comes pre-installed on all Linux systems
Recursively searches directory trees
Supports complex search criteria
Can perform actions on found files

While the syntax may seem complex initially, find is powerful and universally available, making it the most reliable tool for file search on Linux systems.

References

find manual: Use man find for complete documentation
Common find examples: find --help