/usr/lib/R/site-library/optparse/exec/display_file.R is in r-cran-optparse 1.2.0-1.
This file is owned by root:root, with mode 0o755.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | #!/usr/bin/env Rscript
# Copyright 2010-2013 Trevor L Davis <trevor.l.davis@stanford.edu>
# Copyright 2013 Kirill Müller
#
# This file is free software: you may copy, redistribute and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation, either version 2 of the License, or (at your
# option) any later version.
#
# This file is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
suppressPackageStartupMessages(library("optparse"))
option_list <- list(
make_option(c("-n", "--add_numbers"), action="store_true", default=FALSE,
help="Print line number at the beginning of each line [default]")
)
parser <- OptionParser(usage = "%prog [options] file", option_list=option_list)
arguments <- parse_args(parser, positional_arguments = 1)
opt <- arguments$options
file <- arguments$args
if( file.access(file) == -1) {
stop(sprintf("Specified file ( %s ) does not exist", file))
} else {
file_text <- readLines(file)
}
if(opt$add_numbers) {
cat(paste(1:length(file_text), file_text), sep = "\n")
} else {
cat(file_text, sep = "\n")
}
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