【已解决】20元求助，linux下更新文本文件的部分内容。

sysclock

版上牛人真多，继续发帖子活跃气氛：

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1、要更新的文件名sysconfig.ini，内容如下
#[Version]
VERSION=1.0

#[NetConf]
dac_name=beijing
dac_numb=15
dac_mac=00:0a:35:00:1e:xx
dac_ip=192.168.0.2xx
netmask=255.255.255.0

#[TrigerConf]  
trigerSquThd=600
trigerSquRatio=30
Ch1TrigerThd=600
Ch1TrigerRatio=30
Ch1TrigerLen=1000
Ch2TrigerThd=600
Ch2TrigerRatio=30
Ch2TrigerLen=1000
Ch3TrigerThd=600
Ch3TrigerRatio=30
Ch3TrigerLen=1000
Ch4TrigerThd=600
Ch4TrigerRatio=30
Ch4TrigerLen=1000

#[TransConf]
ServerIP=192.168.0.102
FtpPort=21
Username=test
Password=test
DestionFolder=S1
IsDeleted=1
SavePath=/tmp/

#[StationConf]
StationId=15
StationDesc=CP

2、另外一个文件名字remote.ini，内容和格式和他一样。通过ftp已经下载到本地了。

3、如果检测到remote.ini的版本号比sysconfig.ini更大，那么用老的文件sysconfig.ini中的以下两项目更新新的remote.ini文件
dac_name
dac_numb

4、举例，
（1）假如remote.ini内容如下：
#[Version]
VERSION=1.01

#[NetConf]
dac_name=xx
dac_numb=00
dac_mac=00:0a:35:00:1e:xx
dac_ip=192.168.0.2xx
netmask=255.255.255.0

#[TrigerConf]  
trigerSquThd=600
trigerSquRatio=30
Ch1TrigerThd=600
Ch1TrigerRatio=30
Ch1TrigerLen=1000
Ch2TrigerThd=600
Ch2TrigerRatio=30
Ch2TrigerLen=1000
Ch3TrigerThd=600
Ch3TrigerRatio=30
Ch3TrigerLen=1000
Ch4TrigerThd=600
Ch4TrigerRatio=30
Ch4TrigerLen=1000

#[TransConf]
ServerIP=192.168.0.102
FtpPort=21
Username=test
Password=test
DestionFolder=S1
IsDeleted=1
SavePath=/tmp/

#[StationConf]
StationId=15
StationDesc=CP

（2）经过脚本更新后，remote.ini的内容应该如下：
#[Version]
VERSION=1.01

#[NetConf]
dac_name=beijing
dac_numb=15
dac_mac=00:0a:35:00:1e:xx
dac_ip=192.168.0.2xx
netmask=255.255.255.0

#[TrigerConf]  
trigerSquThd=600
trigerSquRatio=30
Ch1TrigerThd=600
Ch1TrigerRatio=30
Ch1TrigerLen=1000
Ch2TrigerThd=600
Ch2TrigerRatio=30
Ch2TrigerLen=1000
Ch3TrigerThd=600
Ch3TrigerRatio=30
Ch3TrigerLen=1000
Ch4TrigerThd=600
Ch4TrigerRatio=30
Ch4TrigerLen=1000

#[TransConf]
ServerIP=192.168.0.102
FtpPort=21
Username=test
Password=test
DestionFolder=S1
IsDeleted=1
SavePath=/tmp/

#[StationConf]
StationId=15
StationDesc=CP

================================
谢谢

amwfjhh

#!/bin/bash

nVerLocal=`sed -n "/VERSION/{s/.*=//;p}" sysconfig.ini`
nVerRemote=`sed -n "/VERSION/{s/.*=//;p}" remote.ini`
echo Local Version : $nVerLocal
echo Remote Version : $nVerRemote
nDiff=`awk -v x="${nVerLocal}" -v y="${nVerRemote}" 'BEGIN{printf "%d\n",(y-x)*100}'`
if [ $nDiff -gt 0 ]
then
        echo Remote version is newer than local version.
        echo Now will update the dac_name and dac_numb
        dac_name=`sed -n "/dac_name/{s/.*=//;p}" sysconfig.ini`
        dac_numb=`sed -n "/dac_numb/{s/.*=//;p}" sysconfig.ini`
        echo dac_name : ${dac_name}
        echo dac_numb : ${dac_numb}
        sed "s/dac_name.*/dac_name=${dac_name}/;s/dac_numb.*/dac_numb=${dac_numb}/;" remote.ini >remote_new.ini
        echo Output file : remote_new.ini
        echo Newest content is :
        cat remote_new.ini
fi
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Batcher

#!/bin/bash
dnameSys=$(awk -F '=' '/dac_name=/{print $2}' sysconfig.ini)
dnumbSys=$(awk -F '=' '/dac_numb=/{print $2}' sysconfig.ini)
dnumbRem=$(awk -F '=' '/dac_numb=/{print $2}' remote.ini)
if [[ $dnumbSys -gt $dnumbRem ]]; then
    sed "s/dac_name=.*/dac_name=$dnameSys/; s/dac_numb=.*/dac_numb=$dnumbSys/" remote.ini > remote.ini.new
    mv remote.ini.new remote.ini
fi
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