Santosh Garole's questions

我的提供程序代码init.tf如下：

provider "aws" {
 shared_credentials_file = "~/.aws/credentials"
 region                  = "us-east-1"
}

我使用的 Terraform 版本是：0.11.14

我在执行以下操作时收到如下错误terraform init：

Error installing provider "aws": openpgp: signature made by unknown entity.

Terraform analyses the configuration and state and automatically downloads
plugins for the providers used. However, when attempting to download this
plugin an unexpected error occured.

This may be caused if for some reason Terraform is unable to reach the
plugin repository. The repository may be unreachable if access is blocked
by a firewall.

If automatic installation is not possible or desirable in your environment,
you may alternatively manually install plugins by downloading a suitable
distribution package and placing the plugin's executable file in the
following directory:
    terraform.d/plugins/windows_amd64

我编写了一个 bash 脚本，它检查操作系统版本并根据操作系统分布计算可用的安全补丁。

这里的查询是脚本不适用于 Ubuntu OS。脚本如下：

#!/bin/bash


# Detecting OS Distribution
if [ -f /etc/os-release ]; then
  . /etc/os-release
  OS=$PRETTY_NAME

elif [ -f /etc/redhat-release ]; then

   REDHAT=$(cat /etc/redhat-release)

else
   echo " OS is not supported "
fi

#Check how many packages for security and available to update
if [[ $OS == *"Red Hat"* ]] || [[ $OS == *"Amazon Linux"* ]] || [[ $OS == 
    *"CentOS"*  ]] || [[ $REDHAT == *"Red Hat"*  ]] ; then

    SECPKGCNT=$(sudo yum list-security --security | awk 'NR>2 {print last} 
{last=$0}' | wc -l)
    echo "${OS},${REDHAT},${SECPKGCNT}"

elif [[ $OS == *"Ubuntu"* ]] ;then

    SECPKGCOUNT=$(sudo apt list --upgradable 2>/dev/null | grep "\-security" 
    | wc -l)
    echo "${OS},${SECPKGCOUNT}"
   else
  echo " No security packages to update"
   fi

ubuntu机器中的O/p：

root@ip-XXXX:~# sh -x getos.sh
+ [ -f /etc/os-release ]
+ . /etc/os-release
+ NAME=Ubuntu
+ VERSION=14.04.5 LTS, Trusty Tahr
+ ID=ubuntu
+ ID_LIKE=debian
+ PRETTY_NAME=Ubuntu 14.04.5 LTS
+ VERSION_ID=14.04
+ HOME_URL=http://www.ubuntu.com/
+ SUPPORT_URL=http://help.ubuntu.com/
+ BUG_REPORT_URL=http://bugs.launchpad.net/ubuntu/
+ OS=Ubuntu 14.04.5 LTS
+ [[ Ubuntu 14.04.5 LTS = *Red Hat* ]]
getos.sh: 29: getos.sh: [[: not found
+ [[ Ubuntu 14.04.5 LTS = *Amazon Linux* ]]
getos.sh: 29: getos.sh: [[: not found
+ [[ Ubuntu 14.04.5 LTS = *CentOS* ]]
getos.sh: 29: getos.sh: [[: not found
+ [[ = *Red Hat* ]]
getos.sh: 29: getos.sh: [[: not found
+ [ Ubuntu 14.04.5 LTS = *Ubuntu* ]
getos.sh: 34: [: Ubuntu: unexpected operator
+ echo  No security packages to update
No security packages to update

在上面的 ubuntu 系统中，脚本没有按预期工作，我的意思是它应该打印操作系统版本和安全补丁的数量。

我有 100 台服务器，我需要使用脚本从中央服务器使用 ssh 登录它们：我在下面尝试了这个，我应该将版本重定向到将存储在中央服务器的文件。

#!/bin/bash

CMD='java -version'
while read line
do
    ssh -n user@"$line" $CMD >> /pathforoutputfile/outputjava.txt

done < /pathforhosts/hosts.txt

但我没有在文件中生成输出/pathforoutputfile/outputjava.txt

我在 cron 作业中使用以下脚本来在 EFS 卸载时收到警报。

但是当 EFS 被卸载时它不会提醒我。

#!/bin/bash
Hostname=$(hostname)
##email subject
subject="EFS is unmounted"
## sending mail to
to="[email protected]"
## send carbon copy to
also_to="[email protected]"

## Check if EFS is mounted or not
efscommenpart=$(df -kh | grep amazonaws.com | cut -d "." -f4)

## If EFS is unmounted
if [[ "$efscommenpart" -ne amazonaws  ]]

then

        echo -e "EFS is not mounted" | mailx -s "$subject" -r "$Hostname" -c "$to" "$also_to"
fi

谁能建议我我在哪里做错了？

这是紧急的……！！！

我检查了 sar 报告，发现 CPU 和内存在特定时间（例如前一天）得到了更多的利用。

是否可以找到占用大量 CPU 和内存的进程？我们如何发现哪个进程正在消耗该内存和 CPU。

我有一个从 Teradata 记录导出的 4TB 大文本文件，我想知道该文件中有多少条记录（在我的情况下为行）。

我怎样才能快速有效地做到这一点？