This topic is about Linux Admin – paste Command.
The paste command is used to merge lines of files. Following are the commonly used switches.
| Switch | Action |
|---|---|
| -d | Specify delimiter |
| -s | Paste one file at a time instead of in parallel |
The best example to clearly understand the -s switch is see it −
[root@centosLocal Documents]# cat myOS.txt && cat lines.txt Linux Windows Solaris OS X BSD line 1 line 2 line 3 line 4 line 5 [root@centosLocal Documents]# past myOS.txt lines.txt [root@centosLocal Documents]# paste myOS.txt lines.txt Linux line 1 Windows line 2 Solaris line 3 OS X line 4 BSD line 5 [root@centosLocal Documents]# paste -s myOS.txt lines.txt Linux Windows Solaris OS X BSD line 1 line 2 line 3 line 4 line 5 [root@centosLocal Documents]#
So, if we wanted a “:” colon or Tab separated file by combining two different files, the paste command makes this fairly simple −
[root@centosLocal Documents]# paste -d":" myOS.txt lines.txt Linux:line 1 Windows:line 2 Solaris:line 3 OS X:line 4 BSD:line 5 [root@centosLocal Documents]# paste -d"\\t" myOS.txt lines.txt Linux line 1 Windows line 2 Solaris line 3 OS X line 4 BSD line 5 [root@centosLocal Documents]#
With paste it’s pretty easy to take a file, and make it into Tab separated columns −
[root@centosLocal Documents]# paste -d"\t" - - < lines.txt line 1 line 2 line 3 line 4 line 5 [root@centosLocal Documents]#
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