### Example Log File 2 Content

Source: https://github.com/ptmcg/logmerger/blob/main/README.md

Content of the second log file used in the example.

```log
# log2.txt
2023-07-14 08:00:01 INFO   Request processed successfully
2023-07-14 08:00:03 INFO   User authentication succeeded
2023-07-14 08:00:06 DEBUG  Starting data synchronization
2023-07-14 08:00:08 INFO   Processing incoming request
2023-07-14 08:00:11 DEBUG  Performing database backup
2023-07-14 08:00:14 WARN   Invalid input received: missing required field
```

--------------------------------

### Install logmerger

Source: https://github.com/ptmcg/logmerger/blob/main/README.md

Install the base logmerger package from PyPI. This makes it available as a console command.

```bash
pip install logmerger
```

--------------------------------

### Example Log File 1 Content

Source: https://github.com/ptmcg/logmerger/blob/main/README.md

Content of the first log file used in the example.

```log
# log1.txt
2023-07-14 08:00:01 WARN   Connection lost due to timeout
2023-07-14 08:00:04 ERROR  Request processed unsuccessfully
Something went wrong
Traceback (last line is latest):
    sample.py: line 32
        divide(100, 0)
    sample.py: line 8
        return a / b
ZeroDivisionError: division by zero
2023-07-14 08:00:06 INFO   User authentication failed
2023-07-14 08:00:08 DEBUG  Starting data synchronization
2023-07-14 08:00:11 INFO   Processing incoming request
```

--------------------------------

### Merged Log Output Example

Source: https://github.com/ptmcg/logmerger/blob/main/README.md

Example of the merged log output when sent to stdout. It shows timestamps and content from both log files.

```text
  Timestamp                 Files/Log1.Txt                        Files/Log2.Txt
 ────────────────────────────────────────────────────────────────────────────────────────────────────
  2023-07-14 08:00:01.000   WARN   Connection lost due to         INFO   Request processed
                            timeout                               successfully
  2023-07-14 08:00:03.000                                         INFO   User authentication
                                                                  succeeded
  2023-07-14 08:00:04.000   ERROR  Request processed
                            unsuccessfully
                             Something went wrong
                             Traceback (last line is latest):
                                 sample.py: line 32
                                     divide(100, 0)
                                 sample.py: line 8
                                     return a / b
                             ZeroDivisionError: division by zero                           
  2023-07-14 08:00:06.000   INFO   User authentication            DEBUG  Starting data
                            failed                                synchronization
  2023-07-14 08:00:08.000   DEBUG  Starting data                  INFO   Processing incoming request
                            synchronization
  2023-07-14 08:00:11.000   INFO   Processing incoming request    DEBUG  Performing database backup
                            INFO   Processing incoming request
                            (a little more...)
  2023-07-14 08:00:14.000   DEBUG  Performing database backup     WARN   Invalid input received:
                                                                  missing required field
```

--------------------------------

### Install logmerger with pcap support

Source: https://github.com/ptmcg/logmerger/blob/main/README.md

Install logmerger with the extra 'pcap' dependency to enable merging of pcap files.

```bash
pip install logmerger[pcap]
```

--------------------------------

### Logmerger Command Line Help

Source: https://github.com/ptmcg/logmerger/blob/main/README.md

Display the help message for the logmerger command, showing all available arguments and their descriptions.

```bash
usage: logmerger [-h] [--interactive] [--inline] [--output OUTPUT]
                 [--start START] [--end END] [--autoclip]
                 [--ignore_non_timestamped] [--width WIDTH]
                 [--line_numbers] [--show_clock]
                 [--csv CSV] [--encoding ENCODING]
                 [--timestamp_format [TIMESTAMP_FORMATS ...]]
                 [--demo]
                 [files ...]

positional arguments:
  files                 log files to be merged

options:
  -h, --help            show this help message and exit
  --interactive, -i     show merged output using interactive TUI browser (default)
  --inline              show merged log data as inline merge
  --output OUTPUT, -o OUTPUT
                        save merged output to file ('-' for stdout; files ending in '.md' are saved
                        using Markdown)
  --start START, -s START
                        start time to select time window for merging logs
  --end END, -e END     end time to select time window for merging logs
  --autoclip, -ac       clip merging to time range of logs in first log file
  --ignore_non_timestamped
                        ignore log lines that do not have a timestamp
  --width WIDTH, -w WIDTH
                        total screen width to use for interactive mode (defaults to current screen
                        width)
  --line_numbers, -ln   add line number column
  --show_clock, -clock  show running clock in header
  --csv CSV, -csv CSV   save merged logs to CSV file
  --encoding ENCODING, -enc ENCODING
                        encoding to use when reading log files (defaults to the system default encoding)
  --timestamp_format [TIMESTAMP_FORMATS ...]
                        custom timestamp format
  --demo                Run interactive demo

```

--------------------------------

### Output Merged Logs to Stdout

Source: https://github.com/ptmcg/logmerger/blob/main/README.md

Use the --output - flag to send the merged logs to standard output instead of displaying the TUI. This is useful for piping the output to other commands or for saving to a file.

```bash
logmerger --output - log1.txt log2.txt
```

--------------------------------

### Merge Log Files with Logmerger

Source: https://github.com/ptmcg/logmerger/blob/main/README.md

Basic command to merge two log files using logmerger. This will display an interactive TUI.

```bash
logmerger log1.txt log2.txt
```

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