Linux shell 脚本实例代码分享，讲解关于Linux shell使用脚本的方法。
#!/bin/bash
name=Tom
if grep $name databasefile > /dev/null 2>&1
then
:
else
echo $1 not found in databasefile
exit 1
fi
#!/bin/bash
# Scriptname: nosy
echo -e Are you happy? /c
read answer
echo $answer is the right response.
echo -e What is your full name? /c
read first middle last
echo Hello $first
echo -n Where do you work?
read
echo I guess $REPLY keeps you busy!
#------------------------------------------------
read -p Enter your job title:
echo I thought you might be an $REPLY.
echo -n Who are your best friends?
read -a friends
echo Say hi to ${friends[2]}.
#!/bin/sh
# File: perm_check
# Using the old style test command
file=./testing
file=./c8
if [ -d $file ]
then
echo $file is a directory
elif [ -f $file ]
then
if [ -r $file -a -w $file -a -x $file ]
then # nested if command
echo You have read,write,and execute /
permission on $file.
fi
else
echo $file is neither a file nor a directory.
fi
#!/bin/sh
# File: perm_check2
# Using the old style test command
file=./testing
if [[ -d $file ]]
then
echo $file is a directory
elif [[ -f $file ]]
then
if [[ -rwx $file ]]
then # nested if command
echo You have read,and execute /
permission on $file.
fi
else
echo $file is neither a file nor a directory.
fi
#!/bin/bash
# Scriptname: printer_check
# Script to clear a hung up printer
if [ $LOGNAME != root ]
then
echo Must have root privileges to run this program
exit 1
fi
cat << EOF
Warning: All jobs in the printer queue will be removed.
Please turn off the printer now. Press return when you
are ready to continue. Otherwise press Control C.
EOF
read JUNK # Wait until the user turns off the printer
echo
/etc/rc.d/init.d/lpd stop # Stop the printer
echo -e /nPlease turn the printer on now.
echo Press return to continue
read JUNK # Stall until the user turns the printer
# back on
echo # A blank line is printed
/etc/rc.d/init.d/lpd start # Start the printer
#!/bin/bash
# Scriptname: tellme
# Using the old-style test command
echo -n How old are you?
read age
if [ $age -lt 0 -o $age -gt 120 ]
then
echo Welcome to our planet!
exit 1
fi
if [ $age -ge 0 -a $age -le 12 ]
then
echo A child is a garden of verses
elif [ $age -ge 12 -a $age -le 19 ]
then
echo Rebel without a cause
elif [ $age -ge 20 -a $age -le 29 ]
then
echo You got the world by the tail!!
elif [ $age -ge 30 -a $age -le 39 ]
then
echo Thirty something...
else
echo Sorry I asked
fi
#!/bin/bash
# Scriptname: tellme
# Using the new (( )) compound let command
echo -n How old are you?
read age
if (( age < 0 || age > 120 ))
then
echo Welcome to our planet!
exit 1
fi
if ((age >= 0 && age <= 12))
then
echo A child is a garden of verses
elif ((age >= 13 && age <= 19 ))
then
echo Rebel without a cause
elif (( age >= 19 && age <= 29 ))
then
echo You got the world by the tail!!
elif (( age >= 30 && age <= 39 ))
then
echo Thirty something...
else
echo Sorry I asked
fi
#!/bin/bash
# Name:wholenum
# Purpose:The Linux expr command tests that the user enters an
# integer
#
echo Enter a number.
read number
if expr $number + 0 > /dev/null 2>&1
then
:
else
echo You did not enter an integer value.
exit 1
fi
#!/bin/bash
# Scriptname: xcolors
echo -n Choose a foreground color for your xterm window:
read color
case $color in
[Bb]l??)
xterm -fg blue -fn terminal &
;;
[Gg]ree*)
xterm -fg darkgreen -fn terminal &
;;
red | orange) # The vertical bar means or
xterm -fg $color -fn terminal &
;;
*)
xterm -fn terminal
;;
esac
echo Out of case
#!/bin/bash
# Scriptname: backup
# Purpose:
# Create backup files and store them in a backup directory
#
dir=/home/jody/ellie/backupscripts
for file in memo[1-5]
do
if [ -f $file ]
then
cp $file $dir/$file.bak
echo $file is backed up in $dir
fi
done
#!/bin/bash
# Scriptname: dater
# Purpose: set positional parameters with the set command
# and shift through the parameters.
set $(date)
while (( $# > 0 )) # or [ $# -gt 0 ]
do
echo $1
shift
done原文地址：https://blog.csdn.net/dragonfly0939
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