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Question

这是关于您对我写的脚本的看法的问题。

在我的工作场所，我写了一个bash-script，以在Linux-Systems（RedHat）上执行命令。由于我们获得了一个木偶，木偶没有人在剧本中被融入。是真的：如果您有可能或木偶，并且您在团队中工作，则不建议使用这种解决方案...但是（这就是为什么我想在这里发布它并要求您对此有意见/改进）如果您只想管理一些Linux主机，而不想购买任何许可证等。此脚本可能会为您提供帮助。

该脚本称为“旋转器”，它的工作原理：

它需要服务器列表和功能文件。它将服务器列表分为给定的最大数量TMP列表，并在后台执行功能文件中的命令。然后，它等待所有并行过程完成。最后，它检查是否访问了所有主机。

代码

\#!/bin/bash

usage ()
{
echo ""
echo ""
echo ""
echo "ERROR: $1"
echo ""
echo "You need to provide a serverlist and a"
echo "function file as parameter."
echo "e.g.: sh check_rpm.sh \<server.list\> \<funktions-file.sh\>"
echo "note that the master pushes the config to the client mashines"
echo ""
echo ""
exit 1
}

if \[\[ $# -eq 0 || "$#" == "-h" || "$#" == "--help" || "$#" == "-?" \]\]
then
usage "missing parameter"
exit 1
fi

\######################

# Variablendeklaration

\######################

basedir=$(dirname $0)
hosts=$(cat $1)
funcfile=$2
myhostname=$(hostname -a)
maxlists=100
i=0
j=0
templist=${basedir}/tmp/templist${j}

num=$(cat $1 | wc -l)
length=0
divisor=1

\###################################

# determine num of temp-lists

\###################################

if \[\[ num -gt $maxlists \]\]
then
length=$((num/$maxlists))
((length++))
else
length=1
fi

\######################################

# delete existing old temp lists

\######################################

if \[ ! -z "$(ls -A tmp)" \];
then
rm ./tmp/\*
fi

\######################

# create temp lists

\######################

echo "cutting hostlist"

for host in $hosts;
do
if \[\[ ! "${host^^}" == "${myhostname^^}" \]\]
then
echo $host \>\> $templist
((i++))
fi

if \[\[ $i -eq $length \]\]
then
((j++))
templist=${basedir}/tmp/templist${j}
i=0
fi
done

if \[\[ $j -eq 0 \]\]
then
j=1
fi

\##################################################

# start func-file for all lists and remember PID

\##################################################

k=0
for ((i=0;i\<$j;i++));
do
sleep 0.2
sh $funcfile ${basedir}/tmp/templist${i} &
pids\[${k}\]=$!
((k++))
done

\######################################

# wait till all processes terminate

\######################################

echo "waiting till all processes are done"

for pid in ${pids\[\*\]};
do
wait $pid
done

\#######################

# cleanup temp lists

\#######################

for ((i=0;i\<$j;i++));
do
rm -f ${basedir}/tmp/templist${i}
done

\##########################################

# determine if all hosts were visited

\##########################################

echo "determine if all hosts were visited..."

checkhosts=$(cat tmp/check.list)
done=false
absenthosts=""

for host in $hosts
do
for server in $checkhosts
do
host=$(echo ${host^^})
server=$(echo ${server^^})
if \[\[ "$host" == "$server" \]\]
then
done=true
fi
done

if \[\[ "$done" == "false" \]\]
then
absenthosts+="$host "
else
done=false
fi
done

rm tmp/check.list

\############################################

# tell user which hosts were not visited

\############################################

echo "the following hosts werent visited and need to be handled manually"
echo ""

for host in $absenthosts
do
echo "$host"

done

**# END OF SCRIPT**

旋转器

\#!/bin/bash

# 

# 

# 

# ================||

# PLEASE BE AWARE ||

# ================||

# Add the code, which should be executed within the marked space

# instead of using "ssh" use $SSHOPTS

# 

# 

hosts=$(cat $1)
SSHOPTS="ssh -q -o BatchMode=yes -o ConnectTimeout=10"

for host in $hosts
do
$SSHOPTS $host "hostname" \>\> /opt/c2tools/serverliste_kontrollskripten/rotator/tmp/check.list

# 

# MARK: add code after this mark

# 

# 

# MARK: add code before this mark

# 

done

**# END OF SCRIPT**

。您可以用bash脚本语言编写功能文件。

请分享您的意见

，但可以改进