join
Last Updated on Sunday, 19 December 2010 10:06
| Article Index |
|---|
| 1. Name |
| 2. Synopsis |
| 3. Frequently used options |
| 4. Examples |
1. Name
join [man page] - join lines of two files on a common field
2. Synopsis
join [OPTION]... FILE1 FILE2
3. Frequently used options
-j FIELD
equivalent to `-1 FIELD -2 FIELD'
-1 FIELD
join on this FIELD of file 1
-2 FIELD
join on this FIELD of file 2
4. Examples
Join command can be as a simple database join table.
Suppose that we have two following files, file1:
echo -e "0001 =\n0010 =\n0011 =\n0100 =\n0101\ =\n0111 =" | nl > file1
$ echo -e "one\ntwo\nthree\nfour\nfive\nsix" | nl > file2
now we can use join command to join those two files:
$ join -j 1 file1 file2
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