UNIX for Dummies Questions & Answers

wer,r5yut,dfy5y,dytry
w45w,vbjjbh,xfsd,ctfyuk
xdte56,rty6r,r645,976fd
w34r,dtyer,d5tyty,fdyrt

output
 
wer,r5yut,dfy5y,dytry
w45w,vbjjbh,xfsd,ctfyuk

#!/bin/ksh
echo "enter week"
read week
/usr/xpg4/bin/awk '{for (i=1;i<=$week;i++) {print $i}}' inputfile >>file

awk 'NR <= n' n="${week}" inputfile > file

head -2 filename

var=2
head -$var filename

awk 'NR<=2' filename

echo "Enter a number"
read VAR
echo "You entered $VAR"

a=`expr $VAR - 1`

head -$a file.txt | tail -1