·find path -option [ -print ] [ -exec -ok command ] {} \;
#-print will output the found file to standard output
#-exec command {} \; ----- will find the file Execute the command operation, there is a space between {} and \;
#-ok is the same as -exec, except that the user must be consulted before the operation
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-name filename #Find a file named filename
-perm #Search by execution permission
-user username #Search by file owner
-group groupname #Search by group
-mtime -n +n #Search by file change time , -n refers to within n days, +n refers to n days ago
-atime -n +n #Check by file access time
-perm #Search by execution authority
-user username #Search by file owner
-group groupname #Search by group
-mtime -n +n #Search by file change time, -n means within n days, +n Refers to n days ago
-atime -n +n #Find files by file access time, -n refers to within n days, +n refers to n days ago
-ctime -n +n #Find files by file creation time, -n refers to Within n days, +n refers to n days ago
-nogroup #Check for files with no valid group, that is, the group of the file does not exist in /etc/groups
-nouser #Check for files without a valid owner, that is, the owner of the file -newer f1 !f2 does not exist in /etc/passwd to
find files, -n refers to within n days, +n refers to n days ago
-ctime -n +n #Find files according to the file creation time, -n refers to within n days , +n refers to n days ago
-nogroup #Check for files with no valid group, that is, the group of the file does not exist in /etc/groups
-nouser #Check for files without a valid owner, that is, the owner of the file is in /etc does not exist in /passwd
-newer f1 !f2 #Check for files whose change time is newer than f1 but older than f2
-type b/d/c/p/l/f #Check for block devices, directories, character devices, pipes, symbolic links, ordinary
files- size n[c] #Check files with a length of n blocks [or n bytes]
-depth #Make the search complete this directory before entering subdirectories -fstype #Check files whose
change time is newer than f1 but older than f2-
type b/d/c/p/l/f #Check for block devices, directories, character devices, pipes, symbolic links, ordinary files
-size n[c] #Check for files with a length of n blocks [or n bytes]
-depth #Make the search complete this directory before entering the subdirectory
-fstype #Check files located in a certain type of file system, these file system types can usually be found in /etc/fstab
-mount #Check files without crossing File system mount point
-follow #If a symbolic link file is encountered, follow the file pointed to by the link
-mount #Do not cross the file system mount point when checking the file -follow #If
a symbolic link file is encountered, follow the file pointed to by the link
-cpio #Use the cpio command on matching files to back them up to a tape device
-prune #Ignore a directory
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$find ~ -name "*.txt" -print #Check the .txt file in $HOME and display
$find . -name "*.txt" -print
$find . -name "[AZ]*" -pri26nbsp ; #Use the cpio command on matching files to back them up to a tape device
-prune #Ignore a directory
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$find ~ -name "*.txt" -print #在$HOME中查.txt文件并显示
$find . -name "*.txt" -print
$find . -name "[A-Z]*" -print #查以大写字母开头的文件
$find /etc -name "host*" -print #查以host开头的文件
$find . -name "[a-z][a-z][0--9][0--9].txt" -print #查以两个小写字母和两个数字开头的txt文件
$find . -perm 755 -print
$find . -perm -007 -exec ls -l {} \; #查所有用户都可读写执行的文件同-perm 777
$find . -type d -print
$find . ! -type d -print
$find . -type l -print
$find . -size +1000000c -print #查长度大于1Mb的文件
$find . -size 100c -print # 查长度为100c的文件
$find . -size +10 -print #查长度超过期作废10块的文件（1块=512字节）
$cd /
$find etc home apps -depth -print | cpio -ivcdC65536 -o /dev/rmt0
$find /etc -name "passwd*" -exec grep "cnscn" {} \; #看是否存在cnscn用户
$find . -name "yao*" | xargs file
$find . -name "yao*" | xargs echo "" > /tmp/core.log
$find . -name "yao*" | xargs chmod o-w
======================================================
find -name april* 在当前目录下查找以april开始的文件
find -name april* fprint file 在当前目录下查找以april开始的文件，并把结果输出到file中
find -name ap* -o -name may* 查找以ap或may开头的文件
find /mnt -name tom.txt -ftype vfat 在/mnt下查找名称为tom.txt且文件系统类型为vfat的文件
find /mnt -name t.txt ! -ftype vfat 在/mnt下查找名称为tom.txt且文件系统类型不为vfat的文件
find /tmp -name wa* -type l 在/tmp下查找名为wa开头且类型为符号链接的文件
find /home -mtime -2 在/home下查最近两天内改动过的文件
find /home -atime -1 查1天之内被存取过的文件
find /home -mmin +60 在/home下查60分钟前改动过的文件
find /home -amin +30 查最近30分钟前被存取过的文件
find /home -newer tmp.txt 在/home下查更新时间比tmp.txt近的文件或目录
find /home -anewer tmp.txt 在/home下查存取时间比tmp.txt近的文件或目录
find /home -used -2 列出文件或目录被改动过之后，在2日内被存取过的文件或目录
find /home -user cnscn 列出/home目录内属于用户cnscn的文件或目录
find /home -uid +501 列出/home目录内用户的识别码大于501的文件或目录
find /home -group cnscn 列出/home内组为cnscn的文件或目录
find /home -gid 501 列出/home内组id为501的文件或目录
find /home -nouser 列出/home内不属于本地用户的文件或目录
find /home -nogroup 列出/home内不属于本地组的文件或目录
find /home -name tmp.txt -maxdepth 4 列出/home内的tmp.txt 查时深度最多为3层
find /home -name tmp.txt -mindepth 3 从第2层开始查
find /home -empty 查找大小为0的文件或空目录
find /home -size +512k 查大于512k的文件
find /home -size -512k 查小于512k的文件
find /home -links +2 查硬连接数大于2的文件或目录
find /home -perm 0700 查权限为700的文件或目录
find /tmp -name tmp.txt -exec cat {} \;
find /tmp -name tmp.txt -ok rm {} \;
find / -amin -10 # 查找在系统中最后10分钟访问的文件
find / -atime -2 # 查找在系统中最后48小时访问的文件
find / -empty # 查找在系统中为空的文件或者文件夹
find / -group cat # 查找在系统中属于 groupcat的文件
find / -mmin -5 # 查找在系统中最后5分钟里修改过的文件
find / -mtime -1 #查找在系统中最后24小时里修改过的文件
find / -nouser #查找在系统中属于作废用户的文件
find / -user fred #查找在系统中属于FRED这个用户的文件
查当前目录下的所有普通文件
--------------------------------------------------------------------------------
# find . -type f -exec ls -l {} \;
-rw-r--r-- 1 root root 34928 2003-02-25 ./conf/httpd.conf
-rw-r--r-- 1 root root 12959 2003-02-25 ./conf/magic
-rw-r--r-- 1 root root 180 2003-02-25 ./conf.d/README
查当前目录下的所有普通文件，并在- e x e c选项中使用ls -l命令将它们列出
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在/ l o g s目录中查找更改时间在5日以前的文件并删除它们：
$ find logs -type f -mtime +5 -exec -ok rm {} \;
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查询当天修改过的文件
[root@book class]# find ./ -mtime -1 -type f -exec ls -l {} \;
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查询文件并询问是否要显示
[root@book class]# find ./ -mtime -1 -type f -ok ls -l {} \;
< ls ... ./classDB.inc.php > ? y
-rw-r--r-- 1 cnscn cnscn 13709 1月 12 12:22 ./classDB.inc.php
[root@book class]# find ./ -mtime -1 -type f -ok ls -l {} \;
< ls ... ./classDB.inc.php > ? n
[root@book class]#
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查询并交给awk去处理
[root@book class]# who | awk '{print $1"\t"$2}'
cnscn pts/0
=================================================
awk---grep---sed
[root@book class]# df -k | awk '{print $1}' | grep -v 'none' | sed s"/\/dev\///g"
文件系统
sda2
sda1
[root@book class]# df -k | awk '{print $1}' | grep -v 'none'
文件系统
/dev/sda2
/dev/sda1
1)在/tmp中查找所有的*.h，并在这些文件中查找“SYSCALL_VECTOR"，最后打印出所有包含"SYSCALL_VECTOR"的文件名
A) find /tmp -name "*.h" | xargs -n50 grep SYSCALL_VECTOR
B) grep SYSCALL_VECTOR /tmp/*.h | cut -d':' -f1| uniq > filename
C) find /tmp -name "*.h" -exec grep "SYSCALL_VECTOR" {} \; -print
2)find / -name filename -exec rm -rf {} \;
find / -name filename -ok rm -rf {} \;
3)比如要查找磁盘中大于3M的文件：
find . -size +3000k -exec ls -ld {} ;
4)将find出来的东西拷到另一个地方
find *.c -exec cp '{}' /tmp ';'
如果有特殊文件，可以用cpio，也可以用这样的语法：
find dir -name filename -print | cpio -pdv newdir
6)查找2004-11-30 16:36:37时更改过的文件
# A=`find ./ -name "*php"` | ls -l --full-time $A 2>/dev/null | grep "2004-11-30 16:36:37"