shell while 读行
$ cat test 1 22 33 3
while-read.sh
#!/bin/bash # while-read: read lines from a file count=0 while read; do printf "%d %s\n" $REPLY count=$(expr $count + 1) done <$1
执行：
$ bash wile_read.sh test 1 22 33 3 count:3
$ cat test 1 22 33 3
while-read.sh#!/bin/bash # while-read: read lines from a file count=0 while read; do printf "%d %s\n" $REPLY count=$(expr $count + 1) done <$1
执行：
$ bash wile_read.sh test 1 22 33 3 count:3
