09-28-2012
Linux Script to compare two folders and copy missing files
Hi,
I need help in shell scripting. If someone can help me, that would be great!
Problem. I want Linux Script to compare two folders and copy missing files.
Description.
I have two directories
/dir1
/dir2
I need to copy all distinct/new/unique/missing files from /dir1 and that does not have a correspondent file in /dir2. Condition is , It should only check files 2 days old specified in File pattern below.
ex:
/dir1 Files.
filetoTest_20120923.tar.gz
filetoTestAndCopy_20120922.tar.gz
filetoRead_20120925 (This file does not have any extension)
filetoTest_20120918.tar.gz
filetoTestAndCopy_20120925.tar.gz
filetoRead_20120927
filetoTestAndCopy_20120927.tar.gz
Now, files in /dir2/
filetoTest_20120923.tar.gz
filetoTestAndCopy_20120922.tar.gz
filetoRead_20120925 (This file does not have any extension)
filetoTest_20120918.tar.gz
Thus, the script should run and copy the files
filetoRead_20120927
filetoTestAndCopy_20120927.tar.gz
from dir1 to dir2. (Two days old)
Thanks in advance for the help.
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dircmp(1) User Commands dircmp(1)
NAME
dircmp - directory comparison
SYNOPSIS
dircmp [-ds] [-w n] dir1 dir2
DESCRIPTION
The dircmp command examines dir1 and dir2 and generates various tabulated information about the contents of the directories. Listings of
files that are unique to each directory are generated for all the options. If no option is entered, a list is output indicating whether the
file names common to both directories have the same contents.
OPTIONS
The following options are supported:
-d Compares the contents of files with the same name in both directories and output a list telling what must be changed in the two
files to bring them into agreement. The list format is described in diff(1).
-s Suppresses messages about identical files.
-w n Changes the width of the output line to n characters. The default width is 72.
OPERANDS
The following operands are supported:
dir1 A path name of a directory to be compared.
dir2
USAGE
See largefile(5) for the description of the behavior of dircmp when encountering files greater than or equal to 2 Gbyte ( 2**31bytes).
ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of dircmp: LC_COLLATE, LC_CTYPE, LC_MES-
SAGES, and NLSPATH.
EXIT STATUS
The following exit values are returned:
0 Successful completion.
>0 An error occurred. (Differences in directory contents are not considered errors.)
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWesu |
+-----------------------------+-----------------------------+
SEE ALSO
cmp(1), diff(1), attributes(5), environ(5), largefile(5)
SunOS 5.10 1 Feb 1995 dircmp(1)