06-17-2010
Merging two files with same name
Hello all,
I have limited experience in shell scripting. Here goes my question:
I have two directories that have same number of files with same file names i.e. consider 2 directories A and B. Both directories have files 1.txt, 2.txt......
I need to merge the file 1.txt of A with file 1.txt of B, file 2.txt of A with file 2.txt of B, .....and so on.
Please suggest a UNIX script to do this.
Thanks.
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=======
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Hi All ,
I have a scenario where we need to combine two files .
Below are the sample files and expected output ,
File 1:
1|ab
1|ac
1|ae
2|ad
2|ac
File 2:
1|xy
1|fc
2|gh
2|ku
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LEARN ABOUT OSX
dot_clean
DOT_CLEAN(1) BSD General Commands Manual DOT_CLEAN(1)
NAME
dot_clean -- Merge ._* files with corresponding native files.
SYNOPSIS
dot_clean [-fmnsv] [--keep=[mostrecent|dotbar|native]] [dir ...]
DESCRIPTION
For each dir, dot_clean recursively merges all ._* files with their corresponding native files according to the rules specified with the
given arguments. By default, if there is an attribute on the native file that is also present in the ._ file, the most recent attribute will
be used.
If no operands are given, a usage message is output. If more than one directory is given, directories are merged in the order in which they
are specified.
OPTIONS
-f Flat merge. Do not recursively merge all directories in the given dir. This is off by default.
-h Help. Prints verbose usage message.
-m Always delete dot underbar files.
-n Delete dot underbar file if there is no matching native file.
-s Follow symbolic links. This will follow symbolic dot underbar files when they are found.
-v Print verbose output.
--keep=mostrecent
The default option. If an attribute is associated with a data fork, use that. Otherwise, use information stored in the AppleDouble
file. Note that the native fork's data is preferred even if the data in the AppleDouble file is newer.
--keep=dotbar
Always use information stored in the AppleDouble file, replacing any extended attributes associated with the native file.
--keep=native
Always use the information associated with the data fork, ignoring any AppleDouble files.
EXAMPLES
The following is how to do an dot_clean merge on the mounted volume test, always using the dot underbar information.
dot_clean --keep=dotbar /Volumes/test
DIAGNOSTICS
The dot_clean utility exits 0 on success, and >0 if an error occurs.
BUGS
None known.
BSD
Sept 27, 2012 BSD