how to spilit a row into fields and store the field content to the array

Shell Programming and Scripting
1

consider this is a line A#B#C#D#E#F#G#H
note the delimeter is #

i want to cut or spilt in to fields using the delimeter # and to store in an array.
like this

array[0]=A
array[1]=B
array[2]=C
array[3]=D
array[4]=E

and the array content should be displayed.

echo "${array[$0]}"
echo "${array[$1]}"
echo "${array[$2]}"
echo "${array[$3]}"
echo "${array[$4]}"

provide me code and i am using bash script.

Thanks
barani

2

Same answer as two days ago.

This work with all posix-sh compatible shells (ksh, posixsh, bash, ...).

oifs="$IFS"   # -save IFS value
IFS="#" 
flds=( $fileline )
IFS="oifs"    # - return original alue
nrofflds=${#flds[@]}

fld1="${flds[0]}"  
fld=0
while (( fld<nrofflds ))
do
       echo "{flds[$fld]}"  
       ((fld+=1))
done
3

In perl:

$str="A#B#C#D#E#F#G#H";
@arr=split(/#/,$str);

for($i=0;$i<=$#arr;$i++)
{
print "Array at pos $i is:$arr[$i]\n";
}

cheers,
Devaraj Takhellambam

4

You can use the cut command with the -d option. this is used to specify the delimiter

And you can specify the field numbers using -f.

echo A#B#C#D#E#F#G#H | "cut -d"#" -f 1
The above code will give 'A'. Then assign this to array[$0]

obviously A#B#C#D#E#F#G#H | "cut -d"#" -f 2 will give 'B'
and so on

5

For specifying the index you used $0,$1,etc.I thing you misunderstood wrongly .just use 0,1,etc for the index.

Here is the solution.using the IFS you can achieve it easily.

str="A#B#C#D#E#F#G#H"

IFS="#"

array=( $str )

echo "${array[0]}"
echo "${array[1]}"
echo "${array[2]}"
echo "${array[3]}"
echo "${array[4]}"
6

Karthi's is simple and straight forward but as a code discipline we should follow some rules like we must not change the IFS variable.

for that we must keep the IFS value by take a copy of that
hence I change his code with a little difference

 
str="A#B#C#D#E#F#G#H"
tmp=$IFS ; # take a copy 
IFS="#"

array=( $str )

echo "${array[0]}"
echo "${array[1]}"
echo "${array[2]}"
echo "${array[3]}"
echo "${array[4]}"

IFS =$tmp;  # get back the previous value