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Top Forums UNIX for Beginners Questions & Answers Merge multiple columns into one using cat Post 303018081 by Don Cragun on Monday 28th of May 2018 04:49:36 PM
Old 05-28-2018
You have shown us that you have two input files with <carriage-return><new-line> line separators and no final line terminators (i.e., DOS text file format).

You have shown us several outputs that you have gotten from what you originally tried and form what others have suggested and you have told us that none of them are what you want. But, from your description and from your examples, I don't know whether you're trying to get all lines from each input file combined into single lines (one for each input file) in the output, all input lines from all files combined into a single output line (sequentially or pairwise), pairs of lines (one from each input file) combined into output lines, or something else.

Please show us the output you are hoping to get from your sample input files and tell us whether you want that output to be in DOS text file format (like your input files) or in standard UNIX text file format (i.e. <new-line> line terminators on every line with no <carriage-return> characters).
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GIT-MERGE-INDEX(1)						    Git Manual							GIT-MERGE-INDEX(1)

NAME
git-merge-index - Run a merge for files needing merging SYNOPSIS
git merge-index [-o] [-q] <merge-program> (-a | [--] <file>*) DESCRIPTION
This looks up the <file>(s) in the index and, if there are any merge entries, passes the SHA-1 hash for those files as arguments 1, 2, 3 (empty argument if no file), and <file> as argument 4. File modes for the three files are passed as arguments 5, 6 and 7. OPTIONS
-- Do not interpret any more arguments as options. -a Run merge against all files in the index that need merging. -o Instead of stopping at the first failed merge, do all of them in one shot - continue with merging even when previous merges returned errors, and only return the error code after all the merges. -q Do not complain about a failed merge program (a merge program failure usually indicates conflicts during the merge). This is for porcelains which might want to emit custom messages. If git merge-index is called with multiple <file>s (or -a) then it processes them in turn only stopping if merge returns a non-zero exit code. Typically this is run with a script calling Git's imitation of the merge command from the RCS package. A sample script called git merge-one-file is included in the distribution. ALERT ALERT ALERT! The Git "merge object order" is different from the RCS merge program merge object order. In the above ordering, the original is first. But the argument order to the 3-way merge program merge is to have the original in the middle. Don't ask me why. Examples: torvalds@ppc970:~/merge-test> git merge-index cat MM This is MM from the original tree. # original This is modified MM in the branch A. # merge1 This is modified MM in the branch B. # merge2 This is modified MM in the branch B. # current contents or torvalds@ppc970:~/merge-test> git merge-index cat AA MM cat: : No such file or directory This is added AA in the branch A. This is added AA in the branch B. This is added AA in the branch B. fatal: merge program failed where the latter example shows how git merge-index will stop trying to merge once anything has returned an error (i.e., cat returned an error for the AA file, because it didn't exist in the original, and thus git merge-index didn't even try to merge the MM thing). GIT
Part of the git(1) suite Git 1.8.3.1 06/10/2014 GIT-MERGE-INDEX(1)
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