Linux ln创建、删除软链接的正确方式-点球世界杯-世界杯乒乓球决赛_世界杯阿根廷

软连接相关命令：ln

1、创建一个软连接

# ln -s /usr/softwaredir/ /home/softwaredir_link

2、删除软连接出现错误

# rm /home/softwaredir_link/

rm: 无法删除"/home/softwaredir_link/": 是一个目录

3、删除软连接的正确方式

# rm /home/softwaredir_link/

rm: 无法删除"/home/softwaredir_link/": 是一个目录

# rm /home/softwaredir_link

rm：是否删除符号链接 “/home/softwaredir_link”？y

4、只是删除了软连接文件(正确方式)

# rm -rf /home/softwaredir_link

# ll /usr/softwaredir/

总用量 4

-rw-r--r-- 1 root root 12 7月 4 18:09 softwaredir.txt

5、错误操作，通过软连接删除了实际存在的数据。

# ln -s /usr/softwaredir /home/softwaredir_link

# ls

logs monitor packages.tar.gz www

softwaredir_link lost+found monitor_log

# rm -rf /home/softwaredir_link/

# ls

logs monitor packages.tar.gz www

softwaredir_link lost+found monitor_log

[home]# cd softwaredir_link/

[softwaredir_link]# ls

[softwaredir_link]# cd /usr/softwaredir/

[softwaredir]# ls

ln使用说明

LN(1) User Commands LN(1)

NAME

ln - make links between files

SYNOPSIS

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

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

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

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

DESCRIPTION

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 DIREC‐

TORY. Create hard links by default, symbolic links with --symbolic. By default, each destination

(name of new link) should not already exist. When creating hard links, each TARGET must exist.

Symbolic links can hold arbitrary text; if later resolved, a relative link is interpreted in rela‐

tion to its parent directory.

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

--backup[=CONTROL]

make a backup of each existing destination file

-b like --backup but does not accept an argument

-d, -F, --directory

allow the superuser to attempt to hard link directories (note: will probably fail due to sys‐

tem restrictions, even for the superuser)

-f, --force

remove existing destination files

-i, --interactive

prompt whether to remove destinations

-L, --logical

dereference TARGETs that are symbolic links

-n, --no-dereference

treat LINK_NAME as a normal file if it is a symbolic link to a directory

-P, --physical

make hard links directly to symbolic links

-r, --relative

create symbolic links relative to link location

-s, --symbolic

make symbolic links instead of hard links

-S, --suffix=SUFFIX

override 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 always

-v, --verbose

print name of each linked file

--help display 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, off

never make backups (even if --backup is given)

numbered, t

make numbered backups

existing, nil

numbered if numbered backups exist, simple otherwise

simple, never

always make simple backups

Using -s ignores -L and -P. Otherwise, the last option specified controls behavior when a TARGET is

a symbolic link, defaulting to -P.

GNU coreutils online help: Report ln translation bugs to

AUTHOR

Written by Mike Parker and David MacKenzie.