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Shell Programming and Scripting

Read variable inputs

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# 1  
Old 04-02-2013
MySQL Read variable inputs
I am trying to make an interactive script. Only problem my inputs are not read and correctly channeled.

Please help:



Here is my code

Code:
#!/bin/sh
PATHSCRIPT=/home/pp/tmp

#if [ -z "$1" ]; then
# echo "Syntax : $0 input off lat sample"
#  exit 1
#  fi
echo "Choice of Graph"

echo "1 -- Type one graph 2 -- Type two graph 3 -- type three graph"


 read num

if [[$num -eq 2]]; then

#echo " Enter arguments seperated with space: input off lat sample"
echo "Syntax : $0 input off lat sample"
#read $input $off $lat $sample
if [ $# -lt 2 ];
then
echo -e $HELP
exit 1
else
INPUT=$1
shift
OFF=$1
shift
LAT=$1
shift
SAMPLE=$1
shift
fi

else

if [[num==1]]; then
echo " Enter arguments seperated with space: input off lat sample"
#read $input $off $lat $sample

else

echo " Enter arguments seperated with space: input off lat sample"
#read $input $off $lat $sample
fi

fi

I keep receiving this error:

Choice of Graph
"1 -- Type one graph 2 -- Type two graph 3 -- type three graph"
+ read num
2
+ [[2 -eq 2]]
./mastergraph_options.sh: 1: [[2: not found
+ [[num==1]]
./mastergraph_options.sh: 1: [[num==1]]: not found
+ echo Enter input off lat sample
Enter arguments seperated with space: input off lat sample

I cannot get past this place.
Please help me read the
--Choice 1,2 or 3
-- channel it to the right format of files to be entered
Smilie
# 2  
Old 04-02-2013
Code:
if [[ $num -eq 2 ]]; then

space should be there in brackets
# 3  
Old 04-04-2013
i tried that, but got this error:

Code:
Choice of Graph
1 -- Type one graph 2 -- Type two graph 3 -- type three graph
+ read num
2
+ [[ 2 -eq 2 ]]
./mastergraph_options.sh: 1: [[: not found
+ [[ 2 -eq 1 ]]
./mastergraph_options.sh: 1: [[: not found
+ echo  Enter input off lat sample 
 Enter input off lat sample

# 4  
Old 04-04-2013
Try [ ] instead of [[ ]]. Some extremely old shells don't have the new [[ ]] brackets yet.
# 5  
Old 04-04-2013
Perfect..
it works...1st half

now the second half is problematic.

I cannot read the input values.

Help pleaseee
# 6  
Old 04-04-2013
You have read $VAR1 $VAR2 $VAR3

This is incorrect, you must do read VAR1 VAR2 VAR3
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