#################Start Script#############
#!/bin/bash
E_BADARGS=65
case $# in
0|1) # "|" 在这里的意思是或操作.
echo "Usage: `basename $0` old_file_suffix new_file_suffix"
exit $E_BADARGS # 如果只有 0 个或1 个参数,那么就退出.
;;
esac
for filename in *.$1 #以第一个参数为扩展名的全部文件的列表
do
mv $filename ${filename%$1}$2 #从筛选出的文件中先去掉以第一参数结尾的扩展名，从筛选出的文件中先去掉以第一参数结尾的扩展名
done
exit
#################End Script#############
用select 来创建菜单 ：
##############Start Script########
#!/bin/bash
PS3='Choose your favorite vegetable: ' # 设置提示符字串.
echo
select vegetable in "beans" "carrots" "potatoes" "onions"
do
echo
echo "Your favorite veggie is $vegetable."
echo "Yuck!"
echo
break # 如果这里没有'break' 会发生什么?
done
exit 0
关掉终端对于密码的 echo:
#################start Script#############
#!/bin/bash
echo
echo -n "Enter password "
read passwd
echo "password is $passwd"
echo -n "If someone had been looking over your shoulder, "
echo "your password would have been compromised."
echo && echo
stty -echo
echo -n "Enter password again "
read passwd
echo
echo "password is $passwd"
echo
stty echo
exit
##############End Script##############
把一个文件的内容全部转换为大写:
######start Script########
#!/bin/bash
if [ -z "$1" ]
then
echo "Usage: `basename $0` filename"
exit 2
fi
tr a-z A-Z <"$1"
exit 0
#########End Script##########
记录按键
#############################StartScript####################################
1 #!/bin/bash
2 # dd-keypress.sh: 记录按键, 不需要按回车.
3
4
5 keypresses=4 # 记录按键的个数.
6
7
8 old_tty_setting=$(stty -g) # 保存老的终端设置.
9
10 echo "Press $keypresses keys."
11 stty -icanon -echo # 禁用标准模式.
12 # 禁用本地 echo.
13 keys=$(dd bs=1 count=$keypresses 2> /dev/null)
14 # 如果不指定输入文件的话, 'dd' 使用标准输入.
15
16 stty "$old_tty_setting" # 恢复老的终端设置.
17
18 echo "You pressed the \"$keys\" keys."
19
20 # 感谢 Stephane Chazelas, 演示了这种方法.
21 exit 0
################################EndScript#########################################
生成另一个脚本的shell
####################start Script##################
#!/bin/bash
OUTFILE=generated.sh
(
cat << 'EOF'
#!/bin/bash
OUTFILE=generated.sh
echo "This is a generated shell script."
echo "Generated file will be named: $OUTFILE"
EOF
) > $OUTFILE
if [ -f "$OUTFILE" ]
then
chmod 755 $OUTFILE
else
echo "Problem in creating file: \"$OUTFILE\""
fi
exit 0
case练习:
####################EndScript##################
#!/bin/bash
echo "press your chioceone,two,three"
read number
case
$number in
one)
echo "your choice is one";;
two)
echo "your choice
is two";;
three)
echo "your choice is three";;
*)
echo "Usage
{one|two|three}"
esac
显示进度条：
####################Start Script##################
#!/bin/bash
i=0
while [ $i -lt 20 ]
do
((i++))
echo -ne "=>\033[s"
echo -ne "\033[40;50H"$((i*5*100/100))%"\033[u\033[1D"
usleep 50000
done
echo
####################EndScript##################
####################Start Script##################
COUNTER=0
_R=0
_C=`tput cols`
_PROCEC=`tput cols`
tput cup $_C $_R
printf "["
while [ $COUNTER -lt 100 ]
do
COUNTER=`expr $COUNTER + 1`
sleep 0.1
printf "=>"
_R=`expr $_R + 1`
_C=`expr $_C + 1`
tput cup $_PROCEC 101
printf "]%d%%" $COUNTER
tput cup $_C $_R
done
printf "\n"
####################EndScript##################
####################startScript##################
i=0
while [ $i -lt 20 ]
do
((i++))
echo -ne "=>\033[s"
echo -ne "\033[40;50H"$((i*5*100/100))%"\033[u\033[1D"
usleep 50000
done
echo
####################EndScript##################
###########startScript#########
#!/bin/sh
b=''
for ((i=0;$i<=100;i+=2))
do
printf "[%-50s]%d%%\r" $b $i
sleep 0.1
b=#$b
done
echo
####################EndScript##################
本文出自 “Mr_Z” 博客，请务必保留此出处http://zhangrong.blog.51cto.com/2196532/962306