Shell Programming and Scripting

Printing first 5 and last 5 lines of FX_WT_Feb8_2014.log

 !! Authentication dialogue with 10.79.60.158 failed
   R:  !! Failed to pull policy from policy server
   R:  !! Did not start the scheduler
   There is no readable input file at promises.cf
    !!! System error for stat: "No such file or directory"
   
 
 !! Authentication dialogue with 10.79.60.158 failed
    R:  !! Failed to pull policy from policy server
    R:  !! Did not start the scheduler
    cf-agent was not able to get confirmation of promises from cf-promises, so going to failsafe
There is no readable input file at promises.cf

#!/bin/ksh
ls *.log > list_of_log_files
for file in `cat list_of_log_files`
do
echo "$file"
head -5 $file
tail -5 $file
done
echo "Files are completed"

ls *.log > list_of_log_files
for file in `cat list_of_log_files`

for file in *.log

#!/bin/ksh
n=0
for file in *.log
do      [ $((n++)) -gt 0 ] && echo
        printf "Printing first 5 and last 5 lines of %s.\n\n" "$file"
        head -n 5 "$file"
        printf "\n\n\n"
        tail -n 5 "$file"
done

n=0
ls | while IFS='' read -r file
do      case "$file" in
        (*.log) [ $((n++)) -gt 0 ] && echo
                printf "Printing first 5 and last 5 lines of %s.\n\n" "$file"
                head -n 5 "$file"
                printf "\n\n\n"
                tail -n 5 "$file";;
        esac
done