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Sorry it's because the line assigning GPS has been indented, my bad (and a poor way to set IFS anyway) for writing code that must start in column 1!

Replace:
# Fetch GPS info into array
...

Looks like there were a couple of slight issues with the solution posted:

length is an awk function and should be used as a variable name
image magic draw function requires text x,y 'string'
...

source=ML.JPG
target=target.JPG

set -- $(identify $source |awk 'NR==1{split($3,a,"x"); print a[1],a[2]}') # get the image's size, width=$1, length=$2, you need adjust for your image, depand the...

Could you please give output of jhead , also what pattern you want to format from the output??:confused:

just make use this type code may helpful.:D
cat jpeg.sh
#!/bin/sh
for input in `ls -1...

typeset -i total_lines
typeset -i no_of_files
typeset -i file_no
typeset -i start
typeset -i end
total_lines=$(sed -n '$=' time.txt)
no_of_files=$total_lines/10000+1
file_no=1
end=0
while [...