diff options
Diffstat (limited to '')
| -rw-r--r-- | deadshred.1 | 44 |
1 files changed, 39 insertions, 5 deletions
diff --git a/deadshred.1 b/deadshred.1 index e445c05..8d36103 100644 --- a/deadshred.1 +++ b/deadshred.1 @@ -13,8 +13,9 @@ deadshred \- override the contents of a device that may be broken | -e .IR postend ] -[-r] +[-rY] .I device +.RI [ map-file ] [< .IR random-source ] @@ -67,6 +68,9 @@ to overwrite. .B -r Start writing from the end instead of from the beginning on the first pass over the device. +.TP +.B -Y +Do not ask for confirmation. .PP The value of the .B -belo @@ -95,11 +99,21 @@ is recognised as a synonym, but the value is otherwise case sensitive). .SH OPERANDS -The following operand is supported: +The following operands are supported: .TP -.I file +.I device The file to override. Must be either a regular file or a block device. +.TP +.I map-file +If the file +.I map-file exists +and is non-empty, it specifies what sections in the +.I device +to overwrite; this file will be periodically, and +upon exit, updated to remove parts that has been +successfully overwritten. This file will be unlinked +when it becomes empty. .SH STDIN Unless the standard input is a terminal device, it shall be an @@ -108,10 +122,12 @@ fill the device with. .SH STDOUT If the process is terminated using either of the signals -SIGTERM or SIGINT, the process will write to standard output +SIGTERM or SIGINT, and a +.I map-file +was not specified, the process will write to standard output a map of sections that has not been overwritten yet. The output will be the concatenation of one string per section, -each on the format +followed by a <newline>, each on the format .PP .nf \fB\(dq%s%x-%x/%x\(dq,\fP <\fB\(dq0x\(dq\fP for the first section, \fB\(dq,\(dq\fP otherwise>\fB,\fP @@ -120,6 +136,24 @@ each on the format <\fIthe block size that should be used when trying to overwrite\fP> .fi +.SH INPUT FILES +If a +.I map-file +is specified, its content shall either be empty or +conform to the format specified for the standard +output. See the +.B STDOUT +section for more information. + +.SH OUTPUT FILES +If a +.I map-file +is specified, the data written to it will conform +to the format specified for the standard +output. See the +.B STDOUT +section for more information. + .SH NOTES While the .B deadshred |