shell help - file combination

ting123 · #1 (**permalink**) 06-27-2006

Dear all,

I have a question about merging multiple files to one.

For example, I have 4 files, named file_1, file_2, file_3 and file_4, they all have same line number, and only one word in each line. I want to combine these four files to one file, file_1 becomes the first column of the new file, and file_2 becomes the second column of the new file, and so on.

How can I use shell to do this?

Thanks in advance.

blowtorch · #2 (**permalink**) 06-27-2006

Hmmm, sounds like homework. Look up the man page of paste.

ting123 · #3 (**permalink**) 06-28-2006

Yeah, I forget the command "paste". Thanks. Before this, I used perl to instead of.

marc · #4 (**permalink**) 06-29-2006

correct me if i am wrong......
cant we use a simple ">>" for merging the files
ex: cat file_2 >>file_1

vino · #5 (**permalink**) 06-29-2006

Quote:

Originally Posted by marc

correct me if i am wrong......
cant we use a simple ">>" for merging the files
ex: cat file_2 >>file_1

You can. But the OP wanted file1, file2, file3, file4 to be merged into a single file. The resulting file should have a single line with 4 columns. The >> would merge it into 4 lines in the new file.

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