linux ls -il 命令显示信息含义

[root@rhel15 ~]# ls -il
total 92
327777 -rw------- 1 root root 1524 Mar 13 09:12 anaconda-ks.cfg
164871 drwxr-xr-x 2 root root 4096 Mar 13 09:26 Desktop
1540098 -rw-r--r-- 1 root root 55848 Mar 13 09:12 install.log
1540099 -rw-r--r-- 1 root root 4836 Mar 13 09:12 install.log.syslog

i节点号文件类型属主权限组权限其他权限 (硬)链接数用户名用户组字节数日期时间文件名。

硬链接数是ls的info帮助文档里”number of hard links”的直译。

没有硬链接的普通文件的硬链接数为1，每增加一个硬链接，硬链接数加1；

不包含子目录的目录文件的硬链接数为2（应该是.和..两个链接），每增加一个子目录，硬链接数加1（说明对于目录，其展示的是硬链接数和子目录数之和）。

linux chmod命令参数及用法详解

Usage: chmod [OPTION]... MODE[,MODE]... FILE...

or: chmod [OPTION]... OCTAL-MODE FILE...

or: chmod [OPTION]... --reference=RFILE FILE...

Change the mode of each FILE to MODE.

-c, --changes like verbose but report only when a change is made

--no-preserve-root do not treat `/' specially (the default)

--preserve-root fail to operate recursively on `/'

-f, --silent, --quiet suppress most error messages

-v, --verbose output a diagnostic for every file processed

--reference=RFILE use RFILE's mode instead of MODE values

-R, --recursive change files and directories recursively

display this help and exit --version output version

--help

information and exit

Each MODE is of the form `[ugoa]*([-+=]([rwxXst]*|[ugo]))+'

PS:

OCTAL八进制的

r=4，w=2，x=1

若要rwx属性则4+2+1=7；

若要rw-属性则4+2=6；

若要r-x属性则4+1=7

[root@localhost]# chmod g,+w ./ -R

chmod: invalid mode: `g,+w'

Try `chmod --help' for more information.

You have new mail in /var/spool/mail/root

[root@localhost]# chmod g,+,w ./ -R

chmod: invalid mode: `g,+,w'

Try `chmod --help' for more information.

[root@localhost]# chmod ugoa+rx ./ -R //ok

[root@localhost]# chown --help

Usage: chown [OPTION]... [OWNER][:[GROUP]] FILE...

or: chown [OPTION]... --reference=RFILE FILE...

Change the owner and/or group of each FILE to OWNER and/or GROUP.

With --reference, change the owner and group of each FILE to those of RFILE.

-c, --changes like verbose but report only when a change is made

....

Owner is unchanged if missing. Group is unchanged if missing, but changed

to login group if implied by a `:' following a symbolic OWNER.

OWNER and GROUP may be numeric as well as symbolic.

Examples:

chown root /u Change the owner of /u to "root".

chown root:staff /u Likewise, but also change its group to "staff".

chown -hR root /u Change the owner of /u and subfiles to "root".

把多种文件的全路径写到一个文件中

find /home/ -name "*.c" -o -name "*.h" -o -name '*.adb' -o -name "*.ads"> /home/cscope.files

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