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Full Discussion: Virtual file or memory?
Top Forums UNIX for Advanced & Expert Users Virtual file or memory? Post 302443126 by Corona688 on Friday 6th of August 2010 07:35:48 PM
Old 08-06-2010
The file is not truly deleted until all references to it are closed. Until then, it is kept on disk, generally inaccessible to anything except the programs that still have it open.

You should truncate logfiles instead of deleting them to clear space:

Code:
: > logfile

...will reset its size to zero, after which it will slowly fill up again as long as the program feeding it continues to write.
 

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DDRESCUELOG(1)							   User Commands						    DDRESCUELOG(1)

NAME
ddrescuelog - tool for ddrescue logfiles SYNOPSIS
ddrescuelog [options] logfile DESCRIPTION
GNU ddrescuelog - Tool for ddrescue logfiles. Manipulates ddrescue logfiles, shows their contents, converts them to/from other formats, compares them, and tests rescue status. OPTIONS
-h, --help display this help and exit -V, --version output version information and exit -a, --change-types=<ot>,<nt> change the block types of a logfile -b, --block-size=<bytes> block size in bytes [default 512] -c, --create-logfile[=<tt>] create logfile from list of blocks [+-] -d, --delete-if-done delete the logfile if rescue is finished -D, --done-status return 0 if rescue is finished -f, --force overwrite existing output files -i, --input-position=<bytes> starting position of rescue domain [0] -l, --list-blocks=<types> print block numbers of given types (?*/-+) -m, --domain-logfile=<file> restrict domain to finished blocks in file -n, --invert-logfile invert block types (finished <-> others) -o, --output-position=<bytes> starting position in output file [ipos] -p, --compare-logfile=<file> compare block types in domain of both files -q, --quiet suppress all messages -s, --max-size=<bytes> maximum size of rescue domain to be processed -t, --show-status show a summary of logfile contents -v, --verbose be verbose (a 2nd -v gives more) -x, --xor-logfile=<file> XOR the finished blocks in file with logfile -y, --and-logfile=<file> AND the finished blocks in file with logfile -z, --or-logfile=<file> OR the finished blocks in file with logfile Numbers may be followed by a multiplier: b = blocks, k = kB = 10^3 = 1000, Ki = KiB = 2^10 = 1024, M = 10^6, Mi = 2^20, G = 10^9, Gi = 2^30, etc... REPORTING BUGS
Report bugs to bug-ddrescue@gnu.org Ddrescue home page: http://www.gnu.org/software/ddrescue/ddrescue.html General help using GNU software: http://www.gnu.org/gethelp COPYRIGHT
Copyright (C) 2012 Antonio Diaz Diaz. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. ddrescuelog 1.16 June 2012 DDRESCUELOG(1)
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