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54 lines
1.4 KiB
Groff
54 lines
1.4 KiB
Groff
.\"Text automatically generated by txt2man
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.TH F3 "1" "October 2020" "F3 8.0" "test real flash memory capacity"
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.SH NAME
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\fBf3write, f3read \fP- test real flash memory capacity
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.SH SYNOPSIS
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.nf
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.fam C
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\fBf3write\fP [\fB--start-at\fP=NUM] [\fB--end-at\fP=NUM] <PATH>
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\fBf3read\fP [\fB--start-at\fP=NUM] [\fB--end-at\fP=NUM] <PATH>
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.fam T
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.fi
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.fam T
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.fi
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.SH DESCRIPTION
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F3 (Fight Flash Fraud or Fight Fake Flash) tests the full capacity
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of a flash card (flash drive, flash disk, pendrive). It writes to the
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card and then checks if can read it. It will assure you haven't been
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sold a card with a smaller capacity than stated.
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.PP
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When writing to flash drive, \fBf3write\fP fills the filesystem with 1GB
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files named N.h2w, where N is a number (i.e. /[0-9]+/).
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.PP
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WARNING: all data on the tested disk might be lost!
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.SH OPTIONS
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.TP
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\fB--start-at\fP=NUM
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Initial number of file names. Default value is 1.
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.TP
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\fB--end-at\fP=NUM
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Final number of file names. Default value is "infinity".
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.SH EXAMPLE
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To write over a flash drive mounted at /media/TEST:
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.PP
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.nf
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.fam C
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$ f3write /media/TEST
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.fam T
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.fi
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To read this flash drive:
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.PP
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.nf
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.fam C
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$ f3read /media/TEST
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.fam T
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.fi
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.SH SEE ALSO
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For detailed information about the F3 tools, see:
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.PP
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http://oss.digirati.com.br/f3/
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.SH AUTHOR
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F3 was written by Michel Machado <michel@digirati.com.br>.
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This manual page was first written by Joao Eriberto Mota Filho <eriberto@eriberto.pro.br>.
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