Automatically writing each line to an array in ksh

[warburp]

Hi

Hopefully someone can help. I have a file with values written to by a number of other scripts and I wan to be able to automatically add each line in the file to a separate array value. I have tried the following but it does not work:

cat $DIRTEMP$PIDFILE | while read LINE #read each line in the file
set -A array # null out previous arrays

do
arr[$ARR] = $LINE
echo $LINE
echo ${arr[$ARR]}
$ARR = $ARR + 1
done

Any one suggest how this can be done.

Thanks

Phil.

 

[tikual]

didn't try your script, but there should be
ARR=$ARR+1

tikual

 

[theotyflos]

tikual,

ARR=1
ARR=$ARR+1
ARR becomes "1+1"

I think it should be:

ARR=`expr $ARR + 1` # watch the spaces !!!

or

ARR=$(($ARR+1)) # ksh

summary:

ARR=0
set -A array           # Move it BEFORE the while
cat $DIRTEMP$PIDFILE | while read LINE
do
    arr[$ARR]=$LINE    # NO spaces 
    echo $LINE
    echo ${arr[$ARR]}
    ARR=$(($ARR+1))
done

 

[aigles]

Try this ...

#!/usr/bin/ksh
#
# Read file $FILE in $array[*]
#

set -A array
typeset -i array_index=0
while read array[$((array_index+=1))] ; do
:
done < $0

#
# Print array
#

typeset -i index=0
while (( $((index+=1)) < ${#array[*]} )) ; do
printf &quot;[%3d] %s\n&quot; $index &quot;${array[$index]}&quot;
done


Jean Pierre.

 

[aigles]

sorry, you must read

done < $FILE

Jean Pierre.

 

[Ygor]

If your file only has a single value per line, then you could use the following to load the array (no loop required)...

set -A arr $(<infile)

 

[PHV]

You can try something like this in ksh:

eval $(awk '{
printf "arr[%d]=\"%s\"\n",NR,$0
}' $DIRTEMP$PIDFILE

Hope This Help
PH.