Here,
are some find Command examples in
Unix/Linux.
To run last executed find command :
!find
will repeat the last find command executed by user..
root@testenv
~/java : !find
./emp.java
./dept.java
"."
says starts finding from current directory and include all sub directory and
"/"
says starts finding from root directory
To
find files names as test.java:
find -name
"test.java"
To
find files names other then test.java file in test directory:
find /test/
–not -name "test.java"
To
find files which has been modified/accessed/created less than a day, minute or
hour :
-mtime
is used to search files based on last modification time in days.
-atime
is used to search files based on last accessed time in days.
-ctime
is used to search files based on last changed time in days.
+ sign
is used to search for greater than.
- sign
is used to search for less than.
without
sign is used for exact.
(all
the files modified exact 1 day)
find .
-mtime 1
(find
all the files modified less than 1 day)
find .
-mtime -1
(find
all the files modified more than 1 day)
find .
-mtime +1
We can
use same for –atime and –ctime for last accessed and last changed files.
-mmin is
used to search files based on last modification time in minutes.
-amin
is used to search files based on last accessed time in minutes.
-cmin is
used to search files based on last changed time in minutes.
(find all
the files created exact 15 min)
find .
-cmin 15
(find
all the files created less than 15 min)
find .
-cmin -15
(find
all the files created more than 15 min – means all other files)
find .
-cmin +15
To
find all the files and directories which holds the 777 permission:
–perm
option is used to find files based upon permissions.
(find
all the files with file permission as 777 – rwx on owner, group and others)
find –perm 777
(find
all the files with file permission as 750 – rwx on owner, r-x on group and no
permission to others)
find
–perm 750
(find
all the files with file permission as 444 – rrr on owner, group and others)
find –perm
444
(find
all the files with file permission as 644 – rw- on owner, r—on group and others)
find –perm
644
To
find case insensitive search.
-iname,
by default find searches are case
sensitive. It is used for errors and exceptions in log files.
find .
–iname "error" –print
To
delete temporary files.
–delete
option to do a remove specific files from the search criteria.
find . –delete
–name "error" –print
use
-print0 to avoid problems with white space in the path.
find .
-name "*.tmp" –print0 | xargs rm –f
find .
-name "*.tmp" -print | xargs -0 rm –f
To
find all java file which contains word “Error” with sorted o/p or without
sorted o/p.
find .
–name "*.java" –print | xargs grep “Error”,
find .
–name "*.java" –print | xargs grep “Error” | sort
To
find files only in current directory not searching on sub directories:
While
using find command I required only files, directories and links that are new,
only in the current directory.
find .
-type f -newer –name "*.java"
find .
-type d –newer –name "*.java"
find .
-type l –newer –name "*.java"
While
using find command I required only files, directories and links that are new,
only in the current directory with searching for two sub directories –
specifying the depth of find.
-mindepth for to find files upto minimum depth levels
in directory.
-maxdepth for to find files upto maximum depth levels
in directory.
find . –maxdepth
2 -type f -newer –name "*.java"
find . –maxdepth
2 -type d –newer –name "*.java"
find . –maxdepth
2 -type 1 –newer –name "*.java"
find . –mindepth
2 –maxdepth 10 -type f –name "*.java"
To
find files based on size.
–size
option to find files based upon certain size. It finds all files in current
directory and sub-directory, greater than some size, here size is 1MB = 1048576
bytes:
find .
-size +1048576c -exec ls
-l {} \;
find .
-size +10M -exec ls
-l {} \;
-c
after the number means specify the size in bytes.
To
find files using a range of file sizes, a minus or plus sign can be used before
the number.
-
minus sign means less than
+ plus
sign means "greater than.
If I
want to find all the files within a range of 5 MB to 10 MB:
find .
-size +5242880c -size -10485760c -print
find .
-size +5M -size -10M -print
To
find files 30 days older and above 10 MB size.
You
can use –mtime and –size option to find files which are 30 days old and greater
than 10MB in size
find .
-mtime +30 -size +10485760c -exec ls
-l {} \;
find .
-mtime +30 -size +10M -exec ls
-l {} \;
To
find all of the symbolic links in your home directory, and print the files your
symbolic links points to:
find .
-type l -print | xargs ls -ld | awk '{print $10}'
To
find all empty files from the server.
find .
-empty
To
find largest and smallest file in the current directory:
find .
-type f -exec ls -s {} \; | sort -n -r | head -1
find .
-type f -exec ls -s {} \; | sort -n -r | tail -1
find .
-type f -exec ls -s {} \; | sort -n | head -1
To
find all hidden files from the directory:
find -type
d -name ".*"
find
–print and find is same as –print is a default option of find command.
find
–print0 should be used to avoid any issue with white space in file name or path
while forwarding output to xargs, also use xargs -0 along with find –print0.
find
has an option called –delete which can be used in place of -exec rm {} \;
