Bash: gawk - part II

# gawk 'BEGIN {print "The data3 File Contents:"}
{print $0}
> END {print "End of File"}' data3.txt

The data3 File Contents:
Line 1
Line 2
Line 3
End of File


===============================================

$ cat script4.gawk
BEGIN {
print "The latest list of users and shells"
print "UserID    \t Shell"
print "------     \t------"
FS=":"
}
{
print $1 "       \t " $7
}
END {
print "This concludes the listing"
}



$$ gawk -f script4.gawk /etc/passwd

The latest list of users and shells
UserID           Shell
------          ------
root             /bin/bash
bin              /sbin/nologin
daemon           /sbin/nologin
adm              /sbin/nologin
lp               /sbin/nologin
sync             /bin/sync
shutdown         /sbin/shutdown
halt             /sbin/halt
mail             /sbin/nologin
news
operator         /sbin/nologin

bash: gawk - part I

$ gawk '{print $1}' data1.txt

little
under
besides
own

===============================================

$ gawk -F : -f ./script2.gawk /etc/passwd


$ cat script2.gawk
{print $1 "'s home directory is " $6}

===============================================


$ gawk -F : -f ./script3.gawk /etc/passwd


$ cat script3.gawk
{text="'s home directory is "
print $1 text  $6
}