UNIX下的ls命令的输出格式 作者：一笑而过 2006-05-22 12:39:59 标签：
这是UNIX下的ls命令的输出格式， Column 2 - Number of links Column 3 - Owner of the file. Normally the owner of the file is the user account that originally created it.
Column 4 - Group under which the file belongs. This is by default the group to which the account belongs or first three letters of the userid. The group can be changed by the chgrp command.
Column 5 - Size of file (bytes).
Column 6 - Date of last update
Column 7 - Name of file 这是一篇关于其输出内容的文章 http://www.gsu.edu/~wwwhcs/DOCS/Unix/lsunix.html
下面贴出文章的内容 The LS Command on UNIX The ls command lists the files in your current working directory. When you log onto your account on UNIX, your current working directory is your home or personal directory. This is the directory in which you have personal disk space to put files on or to create sub-directories under. The ls command also has options available. Options follow the hyphen ( - ) sign. Two of the most useful options are a (return all files, even "hidden") and l (give long or full file information). The ls command also accepts strings with the asterisk * used as a "wildcard" to tell UNIX to search for all files that contain the specified sub -string.
Example
$ ls -al *test*
-rw-r--r-- 1 hcsdar usg 592 Sep 1 1993 .test drwx------ 2 hcsdar usg 512 Nov 11 16:21 dirtest -rw-r--r-- 2 hcsdar usg 1097 Nov 2 1993 test -rw------- 1 hcsdar usg 1097 Oct 19 15:54 test.bin -rw------- 1 hcsdar usg 1216 Jul 15 1993 test.fil
What Does This Tell You? Columns 1 2 3 4 5 6 7 -rw-r--r-- 1 hcsdar usg 592 Sep 1 1993 .test drwx------ 2 hcsdar hcs 512 Nov 11 16:21 dirtest
Column 1
Column 1 tells you the type of file, what privileges it has and to whom these privileges are granted. There are three types of privileges. Read and write privileges are easy to understand. The exec privilege is a little more difficult. You can make a file "executable" by giving it exec privileges. This means that commands in the file will be executed when you type the file name in at the UNIX prompt. It also means that when a directory which, to UNIX is a file like any other file, can be "scanned" to see what files and sub-directories are in it. Privileges are granted to three levels of users:
1) the owner of the file. The owner is usually, but not always, the userid that created the file. 2) the group to which the owner belongs. At GSU, the group is usually, but not always designated as the first three letters of the userid of the owner. 3) everybody else who has an account on the UNIX machine where the file resides. Column 2 - Number of links Column 3 - Owner of the file. Normally the owner of the file is the user account that originally created it.
Column 4 - Group under which the file belongs. This is by default the group to which the account belongs or first three letters of the userid. The group can be changed by the chgrp command.
Column 5 - Size of file (bytes).
Column 6 - Date of last update
Column 7 - Name of file
Other Handouts on UNIX The chmod Command Changing Directories on UNIX
Help Center Services June 19, 1995 DAR/DRF lsunix.027
