linux建立软链接

实例：ln -s /home/gamestat /gamestat

linux下的软链接类似于windows下的快捷方式

ln -s a b 中的 a 就是源文件，b是链接文件名,其作用是当进入b目录，实际上是链接进入了a目录

如上面的示例linux软链接，当我们执行命令 cd /gamestat/的时候 实际上是进入了 /home/gamestat/

值得注意的是执行命令的时候,应该是a目录已经建立，目录b没有建立。我最开始操作的是也把b目录给建立了，结果就不对了

删除软链接：

rm -rf b 注意不是rm -rf b/

1

ln a b 是建立硬链接

举例：

cd test-sqlserver/

593 ll

594 ldd Consumer

595 ll /lib64 |grep libodbc

596 ln -s /usr/local/lib/libodbc.so.1 libodbc.so.2

建立链接的使用方法如下：

[root@WEB_YQ_64_79 /]# ln --help

Usage: ln [OPTION]... [-T] TARGET LINK_NAME (1st form)

or: ln [OPTION]... TARGET(2nd form)

or: ln [OPTION]... TARGET... DIRECTORY(3rd form)

or: ln [OPTION]... -t DIRECTORY TARGET... (4th form)

In the 1st form, create a link to TARGET with the name LINK_NAME.

In the 2nd form, create a link to TARGET in the current directory.

In the 3rd and 4th forms, create links to each TARGET in DIRECTORY.

Create hard links by default, symbolic links with --symbolic.

When creating hard links, each TARGET must exist.

Mandatory arguments to long options are mandatory for short options too.

--backup[=CONTROL]make a backup of each existing destination file

-blike --backup but does not accept an argument

-d, -F, --directoryallow the superuser to attempt to hard link

directories (note: will probably fail due to

system restrictions, even for the superuser)

-f, --forceremove existing destination files

-n, --no-dereferencetreat destination that is a symlink to a

directory as if it were a normal file

-i, --interactiveprompt whether to remove destinations

-s, --symbolicmake symbolic links instead of hard links

-S, --suffix=SUFFIXoverride the usual backup suffix

-t, --target-directory=DIRECTORY specify the DIRECTORY in which to create

the links

-T, --no-target-directory treat LINK_NAME as a normal file

-v, --verboseprint name of each file before linking

--helpdisplay this help and exit

--version output version information and exit

The backup suffix is `~', unless set with --suffix or SIMPLE_BACKUP_SUFFIX.

The version control method may be selected via the --backup option or through

the VERSION_CONTROL environment variable. Here are the values:

none, offnever make backups (even if --backup is given)

numbered, tmake numbered backups

existing, nil numbered if numbered backups exist, simple otherwise

simple, never always make simple backup

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