Shell Programming and Scripting

cat file1 file2 | paste -s -d \0 -

miro@miro-ntb:tmp$ cat fact.sh
#!/bin/bash

function fac {
    N=$1
    fact=1
    while [ $N -gt 1 ] ; do 
	fact="${fact}*${N}"
	((N--))
    done
echo $fact | bc
}

fac $1
miro@miro-ntb:tmp$ cat fact.sh fact.sh | paste -s -d \0 -
#!/bin/bash00function fac {0    N=$10    fact=10    while [ $N -gt 1 ] ; do 0	fact="${fact}*${N}"0	((N--))0    done0echo $fact | bc0}00fac $10#!/bin/bash00function fac {0    N=$10    fact=10    while [ $N -gt 1 ] ; do 0	fact="${fact}*${N}"0	((N--))0    done0echo $fact | bc0}00fac $1

miro@miro-ntb:tmp$ paste -d"\0" fact.sh fact.sh 
#!/bin/bash#!/bin/bash

function fac {function fac {
    N=$1    N=$1
    fact=1    fact=1
    while [ $N -gt 1 ] ; do     while [ $N -gt 1 ] ; do 
	fact="${fact}*${N}"	fact="${fact}*${N}"
	((N--))	((N--))
    done    done
echo $fact | bcecho $fact | bc
}}

fac $1fac $1