adding a new data column in a file consisting of 4 columns

I have two tab delimited files: File 1: 12 rows and 1 column File 2: 12 rows and 4 columns

I want to merge these two files i.e., I have a new file of 12 rows and 5 columns (last column should be from file 1.

An开发者_开发问答y suggestions for shell script

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You can use paste for that:

paste file2 file1