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Top Forums UNIX for Beginners Questions & Answers How do I custom sort the files in a directory using the filenames in a text file.? Post 302991728 by Don Cragun on Wednesday 15th of February 2017 08:49:10 PM
Old 02-15-2017
Quote:
Originally Posted by KMusunuru
That is the place where I need some code to work out the process. I need the resultant csv files merged at the last . but first I need some sorting process to work it out
No. It is not. What you need here is to clearly describe what you are trying to do. You have file1.txt and you have a bunch of files in the current working directory with names matching the final component of the pathnames given in file1.txt. Why do you need to sort anything? If you have a list of files to process and a bunch of files in the current directory, why not just read you list of files and process them in the order in which they appear in file1.txt?

What output(s) is(are) your script supposed to produce?

Is this a homework assignment?
 

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DIFF3(1)						      General Commands Manual							  DIFF3(1)

NAME
diff3 - 3-way differential file comparison SYNOPSIS
diff3 [ -exEX3 ] file1 file2 file3 DESCRIPTION
Diff3 compares three versions of a file, and publishes disagreeing ranges of text flagged with these codes: ==== all three files differ ====1 file1 is different ====2 file2 is different ====3 file3 is different The type of change suffered in converting a given range of a given file to some other is indicated in one of these ways: f : n1 a Text is to be appended after line number n1 in file f, where f = 1, 2, or 3. f : n1 , n2 c Text is to be changed in the range line n1 to line n2. If n1 = n2, the range may be abbreviated to n1. The original contents of the range follows immediately after a c indication. When the contents of two files are identical, the contents of the lower-numbered file is suppressed. Under the -e option, diff3 publishes a script for the editor ed that will incorporate into file1 all changes between file2 and file3, i.e. the changes that normally would be flagged ==== and ====3. Option -x (-3) produces a script to incorporate only changes flagged ==== (====3). The following command will apply the resulting script to `file1'. (cat script; echo '1,$p') | ed - file1 The -E and -X are similar to -e and -x, respectively, but treat overlapping changes (i.e., changes that would be flagged with ==== in the normal listing) differently. The overlapping lines from both files will be inserted by the edit script, bracketed by "<<<<<<" and ">>>>>>" lines. For example, suppose lines 7-8 are changed in both file1 and file2. Applying the edit script generated by the command "diff3 -E file1 file2 file3" to file1 results in the file: lines 1-6 of file1 <<<<<<< file1 lines 7-8 of file1 ======= lines 7-8 of file3 >>>>>>> file3 rest of file1 The -E option is used by RCS merge(1) to insure that overlapping changes in the merged files are preserved and brought to someone's atten- tion. FILES
/tmp/d3????? /usr/libexec/diff3 SEE ALSO
diff(1) BUGS
Text lines that consist of a single `.' will defeat -e. 7th Edition October 21, 1996 DIFF3(1)
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