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using readline with parameter

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# 1  
Old 12-11-2011
using readline with parameter
dear all,
i have code shell like this but i want to using parameter for this shell how i can do that :
Code:
ex ./sample.sh 100 500

sample.sh
Code:
START=${1}
LAST=${2}

for (( a=${START}; a<=${LAST}; a++ ))
do
{
        echo $a
}
done

thx for your advice
# 2  
Old 12-11-2011
for-loop in C-style aren't posix standard. Try one of the following options:

Code:
for i in {100..500}
do
    echo $a
done

Code:
a=100
while [ $a -le 500 ]
do
    echo $a
    a=$(($a + 1))
done

# 3  
Old 12-11-2011
Quote:
Originally Posted by balajesuri
for-loop in C-style aren't posix standard. Try one of the following options:

Code:
for i in {100..500}
do
    echo $a
done

Code:
a=100
while [ $a -le 500 ]
do
    echo $a
    a=$(($a + 1))
done

@balajsuri thx for your replay but i dont want using insert variable in scrpit but using parameter for inserting like my exampleSmilie
# 4  
Old 12-11-2011
Code:
a=$1
while [ $a -le $2 ]
do
    echo $a
    a=$(($a + 1))
done

If you insist on using C-style for loops, here's an example:
Code:
for (( i=$1; i<=$2; i++ ))
do
    echo $i
done

# 5  
Old 12-11-2011
Quote:
Originally Posted by balajesuri
Code:
a=$1
while [ $a -le $2 ]
do
    echo $a
    a=$(($a + 1))
done

If you insist on using C-style for loops, here's an example:
Code:
for (( i=$1; i<=$2; i++ ))
do
    echo $i
done

good... whats difference if using while read line and while only iam stillnot understand with this difference
# 6  
Old 12-11-2011
while read <var_name> --> read contents from a file line by line. For e.g. you have a file input.dat with following contents:
AAAA
BBBB
CCCC

The following while loop will read the file line by line and echo it:
bash code:
  1. while read x
  2. do
  3.     echo $x
  4. done < input.dat
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