mirror of
https://github.com/dunwu/linux-tutorial.git
synced 2024-04-15 19:55:24 +08:00
24 lines
352 B
Bash
24 lines
352 B
Bash
#!/usr/bin/env bash
|
|
|
|
# redirecting input file descriptors
|
|
|
|
exec 3>&1
|
|
echo "This is the 3 file descriptor" >&3
|
|
|
|
exec 6>&0
|
|
exec 0< test
|
|
|
|
count=1
|
|
while read line
|
|
do
|
|
echo "Line #$count: $line"
|
|
count=$[ $count + 1 ]
|
|
done
|
|
exec 0<&6
|
|
read -p "Are you done now?" answer
|
|
case $answer in
|
|
Y | y) echo "Goodbye" ;;
|
|
N | n) echo "Sorry, this is the end" ;;
|
|
esac
|
|
|