Shell Programming and Scripting

cat helpme.txt | awk 'NR<5{printf("%-20s %-20d %-20d %-20.1f\n","hello",$1,$2,$3)}' | sort -rk4

#!/bin/sh

echo "Please enter the file you want compressed: \c"; read filename 

echo File: $filename

# check to see file exists and is readable with -r
if [ -r $filename ]
then

echo gzip | gzip -f $filename; gunzip -l $filename.gz > $filename.txt; gunzip $filename
gzip -f rose.bmp; gunzip -l rose.bmp.gz >> $filename.txt; gunzip rose.bmp.gz

cat helpme.txt | awk 'NR<5{printf("%-20s %-20d %-20d %-20.1f\n","hello",$1,$2,$3)}' | sort -rk4

else

echo sorry the file does not exist or is not readable

fi

#!/bin/sh

echo $0