[R] grep fixed (?) in 2.14

[jim holtman]

your syntax is wrong, you need:

 scripts2source[grep("*\\.R$", scripts2source)]

Notice the '\\.' to escape the special meaning of '.', and the "$" to
anchor to the end of the line.


On Thu, Nov 3, 2011 at 8:54 AM, Stephen Sefick <sas0025 at auburn.edu> wrote:
> #This is probably due to my incomplete understanding of grep, but the below
> code has been working for some time to
> #search for .R with anything in front of it and return a list of scripts to
> source.  Likely, the syntax for the
> #grep statement has been wrong all along.
>
> scripts2source <- (c("/home/ssefick/R_scripts/Convert_package.R",
> "/home/ssefick/R_scripts/Convert_R_CODE",
> "/home/ssefick/R_scripts/CV.R", "/home/ssefick/R_scripts/cvs.out.R",
> "/home/ssefick/R_scripts/database_connect",
> "/home/ssefick/R_scripts/database_connect_package.R",
> "/home/ssefick/R_scripts/exit_db.R", "/home/ssefick/R_scripts/exit.R",
> "/home/ssefick/R_scripts/hourly_zoo.R",
> "/home/ssefick/R_scripts/model_diag.R",
> "/home/ssefick/R_scripts/not_numeric.R",
> "/home/ssefick/R_scripts/num_ecol_package.R",
> "/home/ssefick/R_scripts/NumEcolR_scripts",
> "/home/ssefick/R_scripts/old_scripts_DELETE_AFTER_DECEMBER",
> "/home/ssefick/R_scripts/only_numeric_dataframe.R",
> "/home/ssefick/R_scripts/only_numeric.R",
> "/home/ssefick/R_scripts/PCA.ve.R",
> "/home/ssefick/R_scripts/poster_ggplot2_theme.R",
> "/home/ssefick/R_scripts/pressure_transducer_package.R",
> "/home/ssefick/R_scripts/Pressure_Transducer_R_CODE",
> "/home/ssefick/R_scripts/publication_ggplot2_theme.R",
> "/home/ssefick/R_scripts/r2test.R",
> "/home/ssefick/R_scripts/recession_constant_package.R",
> "/home/ssefick/R_scripts/recession_constant_R_CODE",
> "/home/ssefick/R_scripts/serdp_name_split.R",
> "/home/ssefick/R_scripts/setup_R.R",
> "/home/ssefick/R_scripts/USGS.R"))
>
> scripts2source[grep("*.R", scripts2source)]
>
> #here is my problem;  I would like these to be removed.
> scripts2source[c(2,5,13,14,20,24)]
>
> #Thanks for all of your help in advance
> #kindest regards,
>
> #Stephen Sefick
>
> ______________________________________________
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>



-- 
Jim Holtman
Data Munger Guru

What is the problem that you are trying to solve?
Tell me what you want to do, not how you want to do it.