サンプル
#!/bin/bash
#file_desc

exec 3<&0 0<name.txt
read line1
read line2
exec 0<&3
echo $line1
echo $line2

アップデート
$ sudo apt-get update
$ sudo apt-get upgrade docker-engine

1.proxy設定の変更
$ sudo mkdir /etc/systemd/system/docker.service.d
$ sudo touch /etc/systemd/system/docker.service.d/http-proxy.conf
$ sudo vi /etc/systemd/system/docker.service.d/http-proxy.conf

2.プロキシの設定ファイルの変更
/etc/systemd/system/docker.service.d/http-proxy.conf
[Service]
Environment=”HTTP_PROXY=http://proxy.abcde.com:80/” “NO_PROXY=localhost,127.0.0.1”

3.設定内容の反映
$ sudo systemctl daemon-reload
$ systemctl show –property=Environment docker
Environment=HTTP_PROXY=http://proxy.abcde.com:80/ NO_PROXY=localhost,127.0.0.1
$ sudo systemctl restart docker

1.tar.gz
圧縮
#tar -zcvf sample.tar.gz /var/data/
解凍
#tar -zxvf sample.tar.gz

2.tar.bz2
圧縮
#tar -jcvf sample.tar.bz2 /var/data/
解凍
#tar -jxvf sample.tar.bz2

3.tar.xz
圧縮
#tar -Jcvf sample.tar.xz /var/data/
解凍
#tar -Jxvf sample.tar.xz

4.tar
圧縮
#tar -cvf sample.tar /var/data/
解凍
#tar -xvf sample.tar

5.zip
圧縮
#zip -r sample.zip /var/data/
解凍
#unzip sample.zip

1.プロセスを表示
ps aux
ps aux | grep 　nginx

2.プロセスを終了
kill pid
ps -ef | grep processname| grep -v grep | awk ‘{print $2}’ | xargs kill -9

sudo apt-get install xmms2

エラーメッセージ
Another app is currently holding the yum lock; waiting for it to exit…
The other application is: yum
Memory : 105 M RSS (1.4 GB VSZ)
Started: Sat Apr 7 15:57:39 2018 – 1:35:56 ago
State : Sleeping, pid: 15014

解決方法
#rm -rf /var/run/yum.pid
#yum update

1.JDK9のインストール
ダウンロードURL
http://www.oracle.com/technetwork/java/javase/downloads/jdk9-downloads-3848520.html
# cd /usr/local/src
# rpm -ivh jdk-9_linux-x64_bin.rpm

環境変数の設定
$ vim .bash_profile
+ JRE_HOME=/usr/java/default
+ CATALINA_HOME=/opt/tomcat/apache-tomcat-9.0.6
+ export JRE_HOME CATALINA_HOME

環境変数の反映
$ source .bash_profile
# java –version

2.Tomcat9のインストール
ダウンロードURL
https://tomcat.apache.org/download-90.cgi

tomcatユーザの作成
# useradd -s /sbin/nologin tomcat

tomcatファイルの展開、移動
# cd /usr/local/src
$ tar -xvzf apache-tomcat-9.0.6.tar.gz
$ sudo mv apache-tomcat-9.0.6 /opt/tomcat/

環境変数の設定
$ vim .bash_profile
+ JRE_HOME=/usr/java/default
+ CATALINA_HOME=/opt/tomcat/apache-tomcat-9.0.6
+ export JRE_HOME CATALINA_HOME

環境変数の反映
$ source .bash_profile

3.8080ポートを解放
# firewall-cmd –zone=public –add-port=8080/tcp –permanent
# firewall-cmd –reload
# firewall-cmd –list-all

4.Tomcatバージョンの確認
# /opt/tomcat/apache-tomcat-9.0.6/bin/version.sh

1.MySQLYumの追加
For CentOS/RHEL 7
# rpm -Uvh http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm

For CentOS/RHEL 6
# rpm -Uvh http://repo.mysql.com/mysql-community-release-el6-5.noarch.rpm

For CentOS/RHEL 5
# rpm -Uvh http://repo.mysql.com/mysql-community-release-el5-5.noarch.rpm

For Fedora 20
# rpm -Uvh http://repo.mysql.com/mysql-community-release-fc20-5.noarch.rpm

For Fedora 19
# rpm -Uvh http://repo.mysql.com/mysql-community-release-fc19-5.noarch.rpm

For Fedora 18
# rpm -Uvh http://repo.mysql.com/mysql-community-release-fc18-5.noarch.rpm

2.MySQLのインストール
# yum install mysql-community-server

3.MySQL起動
CentOS/RHEL 6/5の場合
# service mysqld start
# service mysqld status
# service mysqld stop

CentOS/RHEL 7の場合
# systemctl status mysqld
# systemctl stop mysqld

4.MySQLの設定
# mysql_secure_installation
NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL
SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!

In order to log into MySQL to secure it, we’ll need the current
password for the root user. If you’ve just installed MySQL, and
you haven’t set the root password yet, the password will be blank,
so you should just press enter here.

Enter current password for root (enter for none):
OK, successfully used password, moving on…

Setting the root password ensures that nobody can log into the MySQL
root user without the proper authorisation.

You already have a root password set, so you can safely answer ‘n’.

Change the root password? [Y/n] y
New password:
Re-enter new password:
Password updated successfully!
Reloading privilege tables..
… Success!

By default, a MySQL installation has an anonymous user, allowing anyone
to log into MySQL without having to have a user account created for
them. This is intended only for testing, and to make the installation
go a bit smoother. You should remove them before moving into a
production environment.

Remove anonymous users? [Y/n] y
… Success!

Normally, root should only be allowed to connect from ‘localhost’. This
ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] y
… Success!

By default, MySQL comes with a database named ‘test’ that anyone can
access. This is also intended only for testing, and should be removed
before moving into a production environment.

Remove test database and access to it? [Y/n] y
– Dropping test database…
… Success!
– Removing privileges on test database…
… Success!

Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.

Reload privilege tables now? [Y/n] y
… Success!

Cleaning up…

All done! If you’ve completed all of the above steps, your MySQL
installation should now be secure.

Thanks for using MySQL!

5.mysqlに接続
CentOS/RHEL 6/5の場合
# service mysqld restart

CentOS/RHEL 7の場合
# systemctl restart mysqld
# chkconfig mysqld on
# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 51
Server version: 5.5.34 MySQL Community Server (GPL) by Remi

Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type ‘help;’ or ‘h’ for help. Type ‘c’ to clear the current input statement.
mysql>

インストール手順
#sudo apt-get update
#sudo apt-get install apt-transport-https ca-certificates curl software-properties-common
#curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add –
#sudo apt-key fingerprint 0EBFCD88

#sudo add-apt-repository “deb [arch=amd64] https://download.docker.com/linux/ubuntu zesty stable”

#sudo apt-get update
#sudo apt-get install docker-ce

1./etc/rc.local
mount -o acl,grpquota,usrquota,rw,sync /dev/sda5 /mnt/

2./etc/fstab
/dev/sda6 /opt ext3 defaults,rw,acl 0 0
mount -a

3.autofs
1) vim /etc/auto.master
/test /etc/auto.test

2) mkdir /test
touch /etc/auto.test

3) vim /etc/auto.test
disk7 -fstype=ext3,rw :/dev/sda7

4)service autofs restart

テスト
cd /test/disk7
ls /test/disk7
mount
watch -n 1 mount