6 Jun
2015
6 Jun
'15
1:20 a.m.
On 06/06/2015 03:21 AM, Nicolas Thierry-Mieg wrote:
perl -pi -e 's:^#!/usr/bin/r:#!/usr/bin/R: unless $i++' path/to/R/scripts/*.R
I assume the "unless $i++" is supposed to limit the replace operation to only the first line each file. Unfortunately, since it is a global variable, it is actually limiting it to only the first line of the first file.
Yeah, it was untested code off the top of my head and you are correct.
just replace it everywhere, /usr/bin/r doesn't exist anyways, but make sure there's nothing after the r: perl -pi -e 's:^#!/usr/bin/r\s*$:#!/usr/bin/R:' whatever/*.R
This should work.
Peter