[ilwxfe]

收集了不少LINUX光盘，但要安装什么软件，（比如说sendmail），其源文件在那里就要找半天，干脆写个脚本，把每张光盘的目录都记下来，方便以后grep。


umount /mnt/cdrom
eject
echo "输入光盘版本号,放入光盘"
read isotype
mount /dev/cdrom /mnt/cdrom
find /mnt/cdrom > .list
sed "s/^/$isotype/" .list >> .temp
cat .temp >> isolist
rm -f .temp
rm -f .list
umount /mnt/cdrom
cd;eject


输出的文件是isolist

[wyltele]

作者: KornLee

有些单词在一篇文章中经常会出现很多次,怎么统计这个单词的个数呢?!
如:文件kshfile,统计shell这个单词的个数,
$cat kshfile
ksh
The "Korn" shell, written by David Korn of AT&T Bell Labs (now Lucent). Written as a major upgrade to "sh", it is compatible with it, but has many more internal commands for the most frequently used functions. It also incorporates most of the same features from tcsh which enhance interactive use (command line history recall etc.). This shell is now available on most systems. It was slow
to gain acceptance because earlier versions were encumbered by AT&T licensing.
$cat kshfile|tr " " "\n"|grep -wc shell
2

to KornLee:


$cat kshfile|tr " " "\n"|grep -wc shell
I don't think this will work well when the delimiter is not space, what if it's tab or just a comma?

ex:
this,this is a ...

[adamzyg]

#!/bin/bash

# 运行次函数时,你将看到一个旋转的射线
# 注意在运行时将次函数放到后台运行,结束时kill掉返回值就行了
rotate ()
{
COUNT="0"
INTVALUE=1
while :
do
COUNT=`expr $COUNT + 1`
case $COUNT in
1)
echo -e '-'"\b\c"
sleep $INTVALUE
;;
2)
echo -e '\\'"\b\c"
sleep $INTVALUE
;;
3)
echo -e '|'"\b\c"
sleep $INTVALUE
;;
4)
echo -e '/'"\b\c"
sleep $INTVALUE
;;
*)
COUNT="0" # 将计数清零
esac
done
}

rotate &
RTPID=$?
# 在这里加入你要运行的脚本,然后等脚本运行完之后kill掉就行了
sleep 10
kill -9 $RTPID
exit 0

[blog_spark]

赞！赞！赞！赞！

[hop]

第17楼：显示unix时间戳

date +%s

[LinuxStarter]

作者: KornLee

有的时候,我们对用户的输入要作必要的检测,如,限制输入的长度/类型.举例说明:

#!/bin/ksh
#要求用户必须输入四个数字
while true
do
echo -n "请输入四个数字:"
read num
len=${#num}
#变量len存放输入的长度
if [[ $num != [0-9][0-9][0-9][0-9] || $len != 4 ]] then
#进行检测,如果你输入有非数字字符,或者长度不等于四个,便提示错误信息
echo "错误! 重新输入"
continue
else
echo "输入正确,退出!";exit 0
fi
done

这是个例子,在我们编写脚本中可以借鉴

KornLee, 这个的意思我大概明白，但对len=${#num}的用法，还有$,#具体表示什么意思不甚了解，请指教，谢谢了

[LinuxStarter]

作者: KornLee

用位置参数比较简单!
cat bj
#! /bin/bash
echo "max:$(for i in $(echo $*);do echo $i;done|sort -n|sed -n '$p')"

[javalee//home/javalee/myshell]bj 23 45 9 4 3 45 3 3 2 2 1 45
max:45

能不能再 细一点结束一哈阿，我看不太懂，cat 是什么意思？

[xaobao]

不错。写的很棒，up 一个~

[lxj821212]

#!/bin/bash
yourip=`ifconfig eth0|grep 'inet addr'|cut -d: -f2|cut -d ' ' -f1`
echo "you eth1 ip is :['$yourip']'"


获得本机ip,我刚刚学

[hway]

作者: lxj821212

#!/bin/bash
yourip=`ifconfig eth0|grep 'inet addr'|cut -d: -f2|cut -d ' ' -f1`
echo "you eth1 ip is :['$yourip']'"


获得本机ip,我刚刚学

不一定网卡就是eth0
也可能是iprb0，ce0，eri0.....

[xcj3232]

作者: javalee

用自动导入函数的方法,可以在命令行下像执行命令一样快捷,而且速度快,占用资源少.
1,建立自己的函数库
mkdir functionlib
然后将常用的脚本改成函数的语法,如:
function filename { command ; }
将filename拷贝到functionlib中,
2,修改环境文件,在/etc/profile中添加
export FPATH=$HOME/functionlib
3,重登录一下
这样的话,你就可以随时用像ls那样运行你自己的filename"命令"
而不需要用什么dot,sh,来运行你的函数/脚本啦~~
如果在脚本中运行,可以在脚本顶部用
#!/bin/sh
##
autoload filename //来自动导入函数.
...
filename //调用函数
...

我按照你说的做了怎么还是不行呢？？？
出现的错误是 autoload 不认识！

[xcj3232]

作者: 777

#比较两个数的大小
#! /bin/bash
max=$1
while [ $2 ]; do
[ $max -lt $2 ] && max=$2
shift
done
echo $max

请你解释一下你的程序的意思好不好！
执行是正确，新手的我还是没有弄明白！！！

[wfbaaa]

谢谢分享，学习一下

[wangminxiao]

学习了，呵呵

[flyaway57]

作者: KornLee

有些单词在一篇文章中经常会出现很多次,怎么统计这个单词的个数呢?!
如:文件kshfile,统计shell这个单词的个数,
$cat kshfile
ksh
The "Korn" shell, written by David Korn of AT&T Bell Labs (now Lucent). Written as a major upgrade to "sh", it is compatible with it, but has many more internal commands for the most frequently used functions. It also incorporates most of the same features from tcsh which enhance interactive use (command line history recall etc.). This shell is now available on most systems. It was slow
to gain acceptance because earlier versions were encumbered by AT&T licensing.
$cat kshfile|tr " " "\n"|grep -wc shell
2

我不太晓得tr的意思，但是好像你这个命令好像不能处理一行里面有多个单词的情况，就比如shell is shell
因为以前受过折磨，我用的是参数-o
[\code]
grep -o kshfile shell | wc -l
[\code]
这样的话一行里出现多个单词的情况也能处理