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Top Forums Shell Programming and Scripting counting the number of lines - again Post 302269277 by f_o_555 on Wednesday 17th of December 2008 09:02:41 AM
Old 12-17-2008
It works, thank you.
I have another problem.

LINES=$(wc -l < filename)
echo $LINES
LINES=`expr ${LINES} - 1`
echo $LINES
but I cannot decrement by 1.

I get the following

12484
expr: non-numeric argument
 

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Rscript(1)								FSF								Rscript(1)

NAME
Rscript - front end for scripting with R SYNOPSIS
Rscript [--options] [-e expr] file [args] DESCRIPTION
A binary front-end to R, for use in scripting applications. expr An optional expression to be evaluated, used in place of expr. file Input file of R expressions args Optional further arguments to be processed by commandArgs in the R interpreter. OPTIONS
--options accepted are --help Print usage and exit --version Print version and exit --verbose Print information on progress --default-packages=list Where 'list' is a comma-separated set of package names, or 'NULL' and also options to R (in addition to --slave --no-restore), such as --save Do save workspace at the end of the session --no-environ Don't read the site and user environment files --no-site-file Don't read the site-wide Rprofile --no-init-file Don't read the user R profile --restore Do restore previously saved objects at startup --vanilla Combine --no-save, --no-restore, --no-site-file --no-init-file and --no-environ SEE ALSO
R(1) R scripting April 2007 Rscript(1)
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