Checking the Size of Files
You can check the size of files and sort them by using the ls command. You can find files that exceed a size limit by using the find command. For more information, see ls(1) and find(1).
How to Display the Size of Files
Change to the directory where the files you want to check are located.
Display the size of the files.
$ ls [-lh] [-s]
-l
Displays a list of files and directories in long format, showing the sizes in bytes. (See the example that follows.)
-h
Scales file and directory sizes into Kbytes, Mbytes, Gbytes, or Terabytes when the file or directory size is larger than 1024 bytes. This option also modifies the output displayed by the -o, -n, -@, and -g options to display file or directory sizes in the new format. For more information, see ls(1).
-s
Displays a list of the files and directories, showing the sizes in blocks.
Examples--Displaying the Size of Files
The following example shows that the lastlog and messages files are larger than the other files in the /var/adm directory.
$ cd /var/adm $ ls -lh total 148 drwxrwxr-x 5 adm adm 512 Nov 26 09:39 acct/ -rw------- 1 uucp bin 0 Nov 26 09:25 aculog drwxr-xr-x 2 adm adm 512 Nov 26 09:25 exacct/ -r--r--r-- 1 root other 342K Nov 26 13:56 lastlog drwxr-xr-x 2 adm adm 512 Nov 26 09:25 log/ -rw-r--r-- 1 root root 20K Nov 26 13:55 messages drwxr-xr-x 2 adm adm 512 Nov 26 09:25 passwd/ drwxrwxr-x 2 adm sys 512 Nov 26 09:39 sa/ drwxr-xr-x 2 root sys 512 Nov 26 09:49 sm.bin/ -rw-rw-rw- 1 root bin 0 Nov 26 09:25 spellhist drwxr-xr-x 2 root sys 512 Nov 26 09:25 streams/ -rw-r--r-- 1 root bin 3.3K Nov 26 13:56 utmpx -rw-r--r-- 1 root root 0 Nov 26 10:17 vold.log -rw-r--r-- 1 adm adm 19K Nov 26 13:56 wtmpx |
The following example shows that the lpsched.1 file uses two blocks.
$ cd /var/lp/logs $ ls -s total 2 0 lpsched 2 lpsched.1 |
How to Find Large Files
Display the size of files in blocks from largest to smallest.
$ ls -s | sort -nr | more
sort -nr
Sorts the list of files by block size from largest to smallest.
Example--Finding Large Files
In the following example, the lastlog and messages files are the largest files in the /var/adm directory.
$ cd /var/adm $ ls -s | sort -nr | more 48 lastlog 30 messages 24 wtmpx 18 pacct 8 utmpx 2 vold.log 2 sulog 2 sm.bin/ 2 sa/ 2 passwd/ 2 pacct1 2 log/ 2 acct/ 0 spellhist 0 aculog total 144 |
How to Find Files That Exceed a Specified Size Limit
To locate and display the names of files that exceed a specified size, use the find command.
$ find directory -size +nnn |
directory | Identifies the directory you want to search. |
-size +nnn | Is a number of 512-byte blocks. Files that exceed this size are listed. |
Example--Finding Files That Exceed a Specified Size Limit
The following example shows how to find files larger than 400 blocks in the current working directory.
$ find . -size +400 -print ./Howto/howto.doc ./Howto/howto.doc.backup ./Howto/howtotest.doc ./Routine/routineBackupconcepts.doc ./Routine/routineIntro.doc ./Routine/routineTroublefsck.doc ./.record ./Mail/pagination ./Config/configPrintadmin.doc ./Config/configPrintsetup.doc ./Config/configMailappx.doc ./Config/configMailconcepts.doc ./snapshot.rs |
Checking the Size of Directories
You can display the size of directories by using the du command and options. Additionally, you can find the amount of disk space used by user accounts on local UFS file systems by using the quot command. For more information about these commands, see du(1) and quot(1M).
How to Display the Size of Directories, Subdirectories, and Files
Display the size of one or more directories, subdirectories, and files by using the du command. Sizes are displayed in 512-byte blocks.
$ du [-as] [directory ...] |
du | Displays the size of each directory you specify, including each subdirectory beneath it. |
-a | Displays the size of each file and subdirectory, and the total number of blocks contained in the specified directory. |
-s | Displays the total number of blocks contained in the specified directory. |
-h | Displays the size of each directory in 1024 bytes. |
-H | Displays the size of each directory in 1000 bytes. |
directory ... | Identifies one or more directories you want to check. |
Examples--Displaying the Size of Directories, Subdirectories, and Files
The following example shows the total sizes of two directories.
$ du -s /var/adm /var/spool/lp 130 /var/adm 40 /var/spool/lp |
The following example shows the sizes of two directories, all of the subdirectories and files they contain, and the total number of blocks contained in each directory.
$ du /var/adm /var/spool/lp 2 /var/adm/log 2 /var/adm/passwd 2 /var/adm/acct/fiscal 2 /var/adm/acct/nite 2 /var/adm/acct/sum 8 /var/adm/acct 2 /var/adm/sa 2 /var/adm/sm.bin 130 /var/adm 4 /var/spool/lp/admins 2 /var/spool/lp/fifos/private 2 /var/spool/lp/fifos/public 6 /var/spool/lp/fifos 2 /var/spool/lp/requests/starbug 4 /var/spool/lp/requests 2 /var/spool/lp/system 2 /var/spool/lp/tmp/starbug 2 /var/spool/lp/tmp/.net/tmp/starbug 4 /var/spool/lp/tmp/.net/tmp 2 /var/spool/lp/tmp/.net/requests/starbug 4 /var/spool/lp/tmp/.net/requests 10 /var/spool/lp/tmp/.net 14 /var/spool/lp/tmp 40 /var/spool/lp |