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Top Forums Shell Programming and Scripting Compare directories and copy differences (files) in a another directory Post 303038827 by jim mcnamara on Saturday 14th of September 2019 11:58:08 PM
Old 09-15-2019
If the file names are the basis of comparison:
Code:
diff -r dir1 dir2 | grep dir1 | awk '{print $4}' > ~/mydiff

diff -r does a recursive comparison of directories and their subdirectories
These 2 Users Gave Thanks to jim mcnamara For This Post:
 

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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 ( 2^31 bytes). 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 5.11 1 Feb 1995 dircmp(1)
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