du – file space usage
GB sized files and directories
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
du -s .archived/
du –sk
# k: output in in KB
# x=> expands, only on the local file system – doesn’t follow NFS Links
# 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
du -Sh |egrep "^[0-9\.]+[GT]\s"
du -x --max-depth=1 –h
du -Shx |egrep "[0-9\.]+[GT]"
df – disk free
df -h
df –help
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:
Check File Size every 10 seconds – start session in screen
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
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
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
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: .
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)