comparison tools/plotting/r_wrapper.sh @ 0:9071e359b9a3

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author xuebing
date Fri, 09 Mar 2012 19:37:19 -0500
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1 #!/bin/sh
2
3 ### Run R providing the R script in $1 as standard input and passing
4 ### the remaining arguments on the command line
5
6 # Function that writes a message to stderr and exits
7 function fail
8 {
9 echo "$@" >&2
10 exit 1
11 }
12
13 # Ensure R executable is found
14 which R > /dev/null || fail "'R' is required by this tool but was not found on path"
15
16 # Extract first argument
17 infile=$1; shift
18
19 # Ensure the file exists
20 test -f $infile || fail "R input file '$infile' does not exist"
21
22 # Invoke R passing file named by first argument to stdin
23 R --vanilla --slave $* < $infile