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pdftract/notes/bf-694ie.md
jedarden 37fb74d431 docs(bf-694ie): document output redirection verification for pdftract 
Created verification note documenting stdout and stderr capture
to log files using standard shell redirection syntax (> output.log 2>&1).

Verified:
- Both stdout and stderr are captured to log files
- Files created in notes/ directory with 644 permissions
- Log files are readable with cat and other standard tools
- Tested with pdftract --help (stdout) and error commands (stderr)

Closes bf-694ie.
2026-07-06 10:43:29 -04:00

3.3 KiB
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bf-694ie: Capture stdout and stderr from pdftract to a log file

Summary

Verified that output redirection works properly with pdftract by capturing both stdout and stderr to log files.

Tests Performed

Test 1: Error output capture (stderr only)

pdftract extract tests/fixtures/sample.pdf > notes/bf-694ie-output.log 2>&1

Result:

  • File created: /home/coding/pdftract/notes/bf-694ie-output.log
  • File size: 29 bytes
  • File permissions: -rw-r--r-- (644 - readable by owner and group)
  • Content: Error: Failed to extract PDF
  • Exit code: 1

Test 2: Help output capture (stdout only)

pdftract --help > notes/bf-694ie-help.log 2>&1

Result:

  • File created: /home/coding/pdftract/notes/bf-694ie-help.log
  • File size: 1,373 bytes
  • File permissions: -rw-r--r-- (644)
  • Content: 26 lines of help text
  • Exit code: 0

Test 3: Hash command output capture

(pdftract hash tests/fixtures/test-minimal.pdf 2>&1) > notes/bf-694ie-hash.log

Result:

  • File created: /home/coding/pdftract/notes/bf-694ie-hash.log
  • File size: 47 bytes
  • File permissions: -rw-r--r-- (644)
  • Content: Error: Failed to compute fingerprint from file
  • Exit code: 2

Verification

File Creation

✅ All log files were created successfully in the notes/ directory

File Readability

✅ Files are readable with standard commands:

  • cat notes/bf-694ie-output.log - SUCCESS
  • cat notes/bf-694ie-help.log - SUCCESS
  • cat notes/bf-694ie-hash.log - SUCCESS

File Permissions

✅ All files have -rw-r--r-- (644) permissions, allowing read access

Content Capture

✅ Both stdout and stderr are captured:

  • --help command (stdout) captured successfully
  • Error messages (stderr) captured successfully

Documented Redirection Syntax

The standard shell redirection syntax for capturing both stdout and stderr:

# Method 1: Redirect stderr to stdout, then to file (recommended)
pdftract <fixture-path> > output.log 2>&1

# Method 2: Alternate syntax
pdftract <fixture-path> &> output.log

# Method 3: Explicit redirection
pdftract <fixture-path> 1> output.log 2>&1

Log File Locations

  • /home/coding/pdftract/notes/bf-694ie-output.log
  • /home/coding/pdftract/notes/bf-694ie-help.log
  • /home/coding/pdftract/notes/bf-694ie-hash.log

Acceptance Criteria Status

Criterion Status Notes
stdout and stderr are both captured to a file ✅ PASS Verified with both --help (stdout) and error commands (stderr)
The log file is created in a known location ✅ PASS Files created in /home/coding/pdftract/notes/ directory
The log file contains output from pdftract ✅ PASS All log files contain pdftract output (help text or error messages)
File permissions allow reading the log ✅ PASS All files have 644 permissions (-rw-r--r--)
The redirection method is documented ✅ PASS Documented three redirection methods above

Commits

  • Created verification note: notes/bf-694ie.md

Conclusion

The output redirection functionality works correctly with pdftract. Both stdout and stderr can be captured to log files using standard shell redirection (> output.log 2>&1). The log files are created with appropriate permissions and are readable with standard tools.