# Using the command line

The File Profile Analyzer can also be started from the command line. This allows you to specify some settings quickly, such as:

- Profile data
- Time range
- Time last
- Help

The profile data can be given using either a space or the `-f` parameter followed by the file. For example `FPA.exe profile_data.txt`, or `FPA.exe -fprofile_data.txt`.

The time range can be given by using the `-t` parameter followed by the range of time (in milliseconds). For example: `FPA.exe profile_data.txt -t10000-20000`, this will limit the profile view from 10 seconds to 20 seconds.

The last N milliseconds of the profile can easily be viewed by using the `-l` parameter followed by the amount of time (in milliseconds). For example: `FPA.exe profile_data.txt -l10000`, this will show the last 10 seconds of the profile.

The command line help can be displayed by using the `-h` parameter. For example: `FPA.exe -h`

Tip: You can use the `-h` parameter to review the version of File Profile Analyzer you are using, this may come in handy when reporting bugs, or requesting new features.

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