CentOS7に15秒でjqコマンドをインストールする
Posted: 2018-09-28
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目次
-
0. サマリ
背景
APIなどを扱う時、多くはjson形式でデータのやり取りをするかと思います。
渡しの場合、linuxのCLIでAPIを叩くことが多いのですが、そんな時にもはや
jqコマンドは必須と言うレベルで使っています。しかしこのjqコマンド、CentOSには標準でインストールされていません。jqコマンドなしなんて無理なのに。。
でも大丈夫、jqコマンドはたった15秒でインストールできます。
(前提)環境
- Amazon EC2
- CentOS Linux release 7.5.1804 (Core)
手順
0. サマリ
たったの2コマンドでインストールできます。
# yum install epel-release # yum install --enablerepo=epel jq一応詳細を解説します。
詳細1. epelリポジトリのインストール
まず最初に、yumでepelリポジトリをインストールします。
yum install epel-release結果は以下の通り。
Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: ftp-srv2.kddilabs.jp * extras: ftp-srv2.kddilabs.jp * updates: ftp-srv2.kddilabs.jp Resolving Dependencies --> Running transaction check ---> Package epel-release.noarch 0:7-11 will be installed --> Finished Dependency Resolution Dependencies Resolved ============================================================================================================================================================= Package Arch Version Repository Size ============================================================================================================================================================= Installing: epel-release noarch 7-11 extras 15 k Transaction Summary ============================================================================================================================================================= Install 1 Package Total download size: 15 k Installed size: 24 k Is this ok [y/d/N]: y Downloading packages: epel-release-7-11.noarch.rpm | 15 kB 00:00:00 Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : epel-release-7-11.noarch 1/1 Verifying : epel-release-7-11.noarch 1/1 Installed: epel-release.noarch 0:7-11 Complete!
一瞬です。2. jqのインストール
次に本番、jqコマンドのインストールを行います。
yum install --enablerepo=epel jq
結果は以下のような感じであればOKです。Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile epel/x86_64/metalink | 5.3 kB 00:00:00 * base: ftp-srv2.kddilabs.jp * epel: ftp.iij.ad.jp * extras: ftp-srv2.kddilabs.jp * updates: ftp-srv2.kddilabs.jp epel | 3.2 kB 00:00:00 (1/3): epel/x86_64/group_gz | 88 kB 00:00:00 (2/3): epel/x86_64/updateinfo | 944 kB 00:00:00 (3/3): epel/x86_64/primary | 3.6 MB 00:00:00 epel 12693/12693 Resolving Dependencies --> Running transaction check ---> Package jq.x86_64 0:1.5-1.el7 will be installed --> Processing Dependency: libonig.so.2()(64bit) for package: jq-1.5-1.el7.x86_64 --> Running transaction check ---> Package oniguruma.x86_64 0:5.9.5-3.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved ============================================================================================================================================================= Package Arch Version Repository Size ============================================================================================================================================================= Installing: jq x86_64 1.5-1.el7 epel 153 k Installing for dependencies: oniguruma x86_64 5.9.5-3.el7 epel 129 k Transaction Summary ============================================================================================================================================================= Install 1 Package (+1 Dependent package) Total download size: 282 k Installed size: 906 k Is this ok [y/d/N]: y Downloading packages: warning: /var/cache/yum/x86_64/7/epel/packages/jq-1.5-1.el7.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID 352c64e5: NOKEY Public key for jq-1.5-1.el7.x86_64.rpm is not installed (1/2): jq-1.5-1.el7.x86_64.rpm | 153 kB 00:00:00 (2/2): oniguruma-5.9.5-3.el7.x86_64.rpm | 129 kB 00:00:00 ------------------------------------------------------------------------------------------------------------------------------------------------------------- Total 1.3 MB/s | 282 kB 00:00:00 Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7 Importing GPG key 0x352C64E5: Userid : "Fedora EPEL (7) <epel@fedoraproject.org>" Fingerprint: 91e9 7d7c 4a5e 96f1 7f3e 888f 6a2f aea2 352c 64e5 Package : epel-release-7-11.noarch (@extras) From : /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7 Is this ok [y/N]: y Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : oniguruma-5.9.5-3.el7.x86_64 1/2 Installing : jq-1.5-1.el7.x86_64 2/2 Verifying : oniguruma-5.9.5-3.el7.x86_64 1/2 Verifying : jq-1.5-1.el7.x86_64 2/2 Installed: jq.x86_64 0:1.5-1.el7 Dependency Installed: oniguruma.x86_64 0:5.9.5-3.el7 Complete!
以上で完了です。とっても早いですね！
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