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Full Discussion: Control structures and scripting question..
Top Forums Shell Programming and Scripting Control structures and scripting question.. Post 302369469 by SlapnutsGT on Sunday 8th of November 2009 07:56:45 PM
Old 11-08-2009
Quote:
grep -q "^$apname" auto.parts && echo "is in parts"
Thanks for reply, the grep code is close to working, im just getting problem now where it always says part is duplicated, but hopefully I can figure it out from here.

Quote:
Morever: if you are entering "100 Brake", you need to split the quantity from the part.

Try this
Code:
echo "Enter qty part"
read line
echo "You typed $line"
set $line
echo $1 
echo $2

I did a poor job of explaining, I don't need to enter quantities, I was just figuratively saying my busted script was allowing more then one to be entered.

But, thanks for the help, hopefully I can get it from here now that I'm aware about specifying the file I gotta look into.

---------- Post updated at 07:56 PM ---------- Previous update was at 06:40 PM ----------

OK! I'm still messing with it and its not working, it keeps telling me everything is duplicated no matter what I type.

My code looks like:
Code:
#bin/sh
stop=0
while test $stop -eq 0
do
echo "Please enter auto part name:"
read apname
if [ "grep -q "$apname" auto.parts" ]
then
        echo -e "Part already entered into inventroy.\n"
        echo -e "Duplicate parts not allowed.\n"
        echo -e "Returning to edit menu...\n"
        stop=1
else
        echo -n "Please enter operator's name:"
        read opname
        status="Part Available"
        cdate=""
        bname=""
        echo ${apname}:${opname}:${status}:${cdate}:${bname} >> auto.parts
        echo -e "A new auto pat has been added to inventory!\n"
fi
done

Sorry to be a bother but this is really annoying me!

Is there a negate expression I should be using in my else statement? Something like:
Code:
grep -q "<$apname is not in file>" auto.parts

If I don't need it, what is the regular expression to see if the string is NOT in a file just so I will know it for future reference? Tried searching but could not find anything.
 

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LEARN ABOUT DEBIAN

rscript

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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