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
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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