LinuxShell脚本编程实例.doc

#! /bin/shecho Current command is $0echo The first parameter is $1echo The second parameter is $2echo The third parameter is $3echo Total of parameters if $#echo Current PID is $#!/bin/bashtimes=0until $times = 3 ;doecho I love linux.sleep 2times=expr $times + 1done#!/bin/bash# menu shell script. samli 2004.4.19until echo List Directory.1 echo Change Directory.2 echo Edit File.3 echo Remove File.4 echo Exit Menu.5 read choice test $choice = 5do case $choice in 1) ls; 2) echo enter target directory: read dir cd $dir ; 3) echo enter file name: read file vi $file ; 4) echo enter file name: read file rm $file ; 5) echo Goodbye ; *) echo illegal option, please input again. esacdone#! /bin/shvar1=abcdefgecho $var1var2=1234echo The value of var2 is $var2echo$HOMEecho$PATHecho$PWD#! /bin/shnum=0while $num -le 10 do num=expr $num + 1 if $num -eq 5 then continue fi square=expr $num * $num echo $squaredone#!/bin/bash# Gnu bash versions 2.x# The Party Program-Invitations to friends from the# guest fileguestfile=./guests#/shell/guestsif ! -e $guestfile then printf $guestfile#*/ non-existent exit 1fiexport PLACE=Sarotinis( Time=$(date +%H) + 1 )set cheese crackers shrimp drinks hot dogs sandwichesfor person in $(cat $guestfile)do if $person = root then continue else # Start of here document mail -v -s Party $person Hi $person! Please join me at $PLACE for a party! Meet me at $Time oclock. Ill bring the ice cream. Would you please bring $1 and anything else you would like to eat? Let me know if you cant make it. Hope to see you soon. Your pal, ellie$(hostname) FINIS shift if ( $# =0 ) then set cheese crackers shrimp drinks hot dogs sandwiches fi fidone printf Bye.#!/bin/sh# Standard AT&T Bourne Shell# The Party Program-Invitations to friends from the# guest fileguestfile=./guests # /home/ellie/shell/guestsif ! -f $guestfile then echo 慴asename $guestfile?non-existent exit 1fiPLACE=Sarotinisexport PLACETime=date +%HTime=expr $Time + 1set cheese crackers shrimp drinks hot dogs sandwichesfor person in $(cat $guestfile)do if $person = root then continue else # Start of here document mail -v -s Party $person Hi $person! Please join me at $PLACE for a party! Meet me at $Time oclock. Ill bring the ice cream. Would you please bring $1 and anything else you would like to eat? Let me know if you cant make it. Hope to see you soon. Your pal, elliehostname FINIS shift if $# -eq0 then set cheese crackers shrimp drinks hot dogs sandwiches fi fidone echo Bye.#!/bin/sh# Scriptname: args# Script to test command line argumentsecho The name of this script is $0.echo The arguments are $*.echo The first argument is $1.echo The second argument is $2.echo The number of arguments is $#.oldargs=$*set Jake Nicky Scott # reset the positional parametersecho All the positional parameters are $*.echo The number of postional parameters is $#.echo GoodVbye for now, $1 set $(date) #reset the positional parametersecho The date is $2 $3, $6.echo The value of $oldargs is $oldargs.set $oldargsecho $1 $2 $3# Name: bigfiles# Purpose: Use the find command to find any files in the root# partition that have not been modified within the past n (any# number within 30 days) days and are larger than 20 blocks# (512 byte blocks)if ( $# != 2 ) #or $# -ne 2 then echoUsage: $0 mdays size 1&2 exit 1fiif ( $1 0 | $1 30 ) #or $1 -lt 0 -o $1 -gt 30 then echo mdays is out of range exit 2fiif ( $2 # or $2 -le 20 then echo size is out of range exit 3fifind / -xdev -mtime $1 -size +$2#!/bin/bash# Scriptname: checker# Script to demonstrate the use of special variable# modifiers and argumentsname=$1:?requires an argument echo Hello $name#!/bin/bash# This is the first Bash shell program of the day.# Scriptname: greetings# Written by:Barbara Bashfulecho Hello $LOGNAME, its nice talking to you.echo Your present working directory is pwd.echo You are working on a machine called uname -n.echo Here is a list of your files.ls # list files in the present working directoryechoBye for now $LOGNAME. The time is date +%T!#!/bin/bash# Scriptname: greetings2echo This script is called $0.echo$0$1 and $2echo The number of positional parameters is $#!/bin/bash# Scriptname: idcheck# purpose:check user id to see if user is root.# Only root has a uid of