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How To Make Multiple Lines Annotation In R, Bash

It is annoying to add "#" one line by one line. I am looking some commands like =pod =cut in perl.

bash python
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updated by Fwip Fwip • written by Yunfei Li Yunfei Li

This is a basic programming question, not bioinformatics-related, better asked at stackoverflow.com. Closing as off-topic.

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written by Neilfws Neilfws

A good text editor will let you highlight a section then comment all of it's lines with one command. I certainly use this all the time in emacs.

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written by Chris Miller Chris Miller

1 answer

Neither R nor Bash have block comments. You can fake them, though:

For Bash:

<<'END'
comments go here
and here
END

http://www.unix.com/shell-programming-scripting/39478-block-comment-shell-script.html

For R:

if(FALSE){'
print("This line will not get printed")
this isn't even code
#but that is okay
'}

http://r.789695.n4.nabble.com/R-Block-comments-in-R-td809283.html

(Note: If your R code to be commented out contains a single quote ('), use double quotes for the top & bottom instead. If it contains both, you can omit the quote character as long as the stuff inside the block has valid syntax.)

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updated by Ram Ram • written by Fwip Fwip

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