Hi, . and * both mean something different in regular expressions than in command-line wildcards. You need:
grep(".*\\.R$", scripts2source) which parses to . - any character * - any number of times \\. - an actual . escaped as R requires R - the R denoting a script $ - at the end of the string > grep(".*\\.R$", scripts2source) [1] 1 3 4 6 7 8 9 10 11 12 15 16 17 18 19 21 22 23 25 26 27 Sarah On Thu, Nov 3, 2011 at 8:54 AM, Stephen Sefick <sas0...@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 > -- Sarah Goslee http://www.functionaldiversity.org ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.