I'm reading a file in bash, taking the values out and saving them to another file. The file has ~100k lines in it, and it takes around 25minutes to read and rewrite them all.
Is there maybe some faster way to write to a file, because now I'm just iterating through the lines, parsing some values and saving them like this:
while read line; do zip="$(echo "$line" | cut -c 1-8)" echo $zip done < file_one.txt
Everything works fine, the values are parsed correctly, I just want to know how can I optimize the process (if I even can).