UNIX for Dummies Questions & Answers

#!/bin/bash 
for file in P8.*txt ; do
    size=$(ls -l $file | awk '{print $5}')              #get the size of file
    if [[ $size -gt $((250*1024*1024)) ]] ; then        #file bigger than 250M
       split -b 250M -a1 $file ${file%.txt}_            #do the spliting, -a1: use only one digit
       suff=0  
       for i in ${file%.txt}_[a-z] ; do                 #change _[a-z] to _[0-9] and add .txt suffix:
           if [[ $suff = 0 ]] ; then  
             newname=${i%_*}.txt 
           else 
             newname=${i%_*}_${suff}.txt 
           fi
          ((suff++))
      
          echo mv $i  $newname                           #take out 'echo' if it works as you want
       done 
   fi
done

ls -lh

((suff++))

let suff += 1

#!/bin/bash
for file in P8.* ; do 
  size=$(ls -l $file | awk '{print $5}')              #get the size of file
  if [[ $size -gt $((250*1024*1024)) ]] ; then        #file bigger than 250M
      split -b 230m -a1 $file ${file%}.               #do the spliting, numeric suffix, -a1: use only one digit
  fi
done
     for file in P8.* ; do 
  size=$(ls -l $file | awk '{print $5}')              
  if [[ $size -gt $((250*1024*1024)) ]] ; then     
      rm $file 
  fi
done