du – file space usage
GB sized files and directories
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du -xh DIRPATH |egrep "^[0-9\.]+[GT]\s" # Examples du -xh ~/ |egrep "^[0-9\.]+[GT]\s" sudo du -xh / |egrep "^[0-9\.]+[GT]\s" |
Size Of Directory and Disk Space
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du -s .archived/ |
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du –sk |
# k: output in in KB
# x=> expands, only on the local file system – doesn’t follow NFS Links
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# GB and TB files and dir du -xh ~/ |egrep "^[0-9\.]+[GT]\s" # MB files and dir du -xh ~/ |egrep "^[0-9\.]+M\s" # KB files and dir du -xh ~/ |egrep "^[0-9\.]+K\s" |
Flat @directory level
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du -Sh |egrep "^[0-9\.]+[GT]\s" |
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du -x --max-depth=1 –h |
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du -Shx |egrep "[0-9\.]+[GT]" |
df – disk free
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df -h |
df –help
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Usage: df [OPTION]... [FILE]... Show information about the file system on which each FILE resides, or all file systems by default. Mandatory arguments to long options are mandatory for short options too. -a, --all include dummy file systems -B, --block-size=SIZE scale sizes by SIZE before printing them. E.g., `-BM' prints sizes in units of 1,048,576 bytes. See SIZE format below. --total produce a grand total -h, --human-readable print sizes in human readable format (e.g., 1K 234M 2G) -H, --si likewise, but use powers of 1000 not 1024 -i, --inodes list inode information instead of block usage -k like --block-size=1K -l, --local limit listing to local file systems --no-sync do not invoke sync before getting usage info (default) -P, --portability use the POSIX output format --sync invoke sync before getting usage info -t, --type=TYPE limit listing to file systems of type TYPE -T, --print-type print file system type -x, --exclude-type=TYPE limit listing to file systems not of type TYPE -v (ignored) --help display this help and exit --version output version information and exit Display values are in units of the first available SIZE from --block-size, and the DF_BLOCK_SIZE, BLOCK_SIZE and BLOCKSIZE environment variables. Otherwise, units default to 1024 bytes (or 512 if POSIXLY_CORRECT is set). SIZE may be (or may be an integer optionally followed by) one of following: KB 1000, K 1024, MB 1000*1000, M 1024*1024, and so on for G, T, P, E, Z, Y. Report df bugs to bug-coreutils@gnu.org GNU coreutils home page: <http://www.gnu.org/software/coreutils/> General help using GNU software: <http://www.gnu.org/gethelp/> For complete documentation, run: info coreutils 'df invocation' |
Check File Size every 10 seconds – start session in screen
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screen while [ 1 ]; do size=$(stat -c %s myfile.db); printf "%s %s\n" $size "$(date)"; sleep 10; done >> /tmp/filesze.txt |
Check File Size every 10 seconds – with nice date formatting
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screen while [ 1 ]; do size=$(stat -c %s myfile.db); printf "%s %s\n" $size "$(date +"%Y-%d-%m %H:%M Week %V %A")"; sleep 1; done; |
Output
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248471 2013-18-01 00:43 Week 03 Friday 248471 2013-18-01 00:43 Week 03 Friday |
References
1. Simple IOTop: http://www.ubuntugeek.com/iotop-simple-top-like-io-monitor.html
man du
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DU(1) User Commands DU(1) NAME du - estimate file space usage SYNOPSIS du [OPTION]... [FILE]... du [OPTION]... --files0-from=F DESCRIPTION Summarize disk usage of each FILE, recursively for directories. Mandatory arguments to long options are mandatory for short options too. -a, --all write counts for all files, not just directories --apparent-size print apparent sizes, rather than disk usage; although the apparent size is usually smaller, it may be larger due to holes in (`sparse') files, internal fragmentation, indirect blocks, and the like -B, --block-size=SIZE scale sizes by SIZE before printing them. E.g., `-BM' prints sizes in units of 1,048,576 bytes. See SIZE format below. -b, --bytes equivalent to `--apparent-size --block-size=1' -c, --total produce a grand total -D, --dereference-args dereference only symlinks that are listed on the command line --files0-from=F summarize disk usage of the NUL-terminated file names specified in file F; If F is - then read names from standard input -H equivalent to --dereference-args (-D) -h, --human-readable print sizes in human readable format (e.g., 1K 234M 2G) --si like -h, but use powers of 1000 not 1024 -k like --block-size=1K -l, --count-links count sizes many times if hard linked -m like --block-size=1M -L, --dereference dereference all symbolic links -P, --no-dereference don't follow any symbolic links (this is the default) -0, --null end each output line with 0 byte rather than newline -S, --separate-dirs do not include size of subdirectories -s, --summarize display only a total for each argument -x, --one-file-system skip directories on different file systems -X, --exclude-from=FILE exclude files that match any pattern in FILE --exclude=PATTERN exclude files that match PATTERN -d, --max-depth=N print the total for a directory (or file, with --all) only if it is N or fewer levels below the command line argument; --max-depth=0 is the same as --summarize --time show time of the last modification of any file in the directory, or any of its subdirectories --time=WORD show time as WORD instead of modification time: atime, access, use, ctime or status --time-style=STYLE show times using style STYLE: full-iso, long-iso, iso, +FORMAT FORMAT is interpreted like `date' --help display this help and exit --version output version information and exit Display values are in units of the first available SIZE from --block-size, and the DU_BLOCK_SIZE, BLOCK_SIZE and BLOCKSIZE environment variables. Otherwise, units default to 1024 bytes (or 512 if POSIXLY_CORRECT is set). SIZE may be (or may be an integer optionally followed by) one of following: KB 1000, K 1024, MB 1000*1000, M 1024*1024, and so on for G, T, P, E, Z, Y. PATTERNS PATTERN is a shell pattern (not a regular expression). The pattern ? matches any one character, whereas * matches any string (composed of zero, one or multiple characters). For example, *.o will match any files whose names end in .o. Therefore, the command du --exclude='*.o' will skip all files and subdirectories ending in .o (including the file .o itself). AUTHOR Written by Torbjorn Granlund, David MacKenzie, Paul Eggert, and Jim Meyering. REPORTING BUGS Report du bugs to bug-coreutils@gnu.org GNU coreutils home page: <http://www.gnu.org/software/coreutils/> General help using GNU software: <http://www.gnu.org/gethelp/> Report du translation bugs to <http://translationproject.org/team/> COPYRIGHT Copyright © 2011 Free Software Foundation, Inc. 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. SEE ALSO The full documentation for du is maintained as a Texinfo manual. If the info and du programs are properly installed at your site, the command info coreutils 'du invocation' should give you access to the complete manual. GNU coreutils 8.12.197-032bb September 2011 DU(1) |
