GNU Parallel installation note

• env : linux/x86_64/bash
• link : kmo/notes_gnu_parallel_install
• 說明 :
  gnu parallel 安裝筆記，適用大部分 Linux 系統
  這邊列舉 rpm 是作者維護的版本，隨時會保持最新
  除此之外，還可透過 conda-forge，由社群持續更新的 gnu parallel
  其他系統，可參考官網提及 Official packages exist for

Package Manager

• install gnu parallel through package manager

yum (RHEL/CentOS)

• create repo file

cat << EOF > /etc/yum.repos.d/gnu_parallel.repo
[gnu_parallel]
name=tanges Project (CentOS_7)
type=rpm-md
baseurl=https://download.opensuse.org/repositories/home:/tange/CentOS_7/
gpgcheck=1
gpgkey=https://download.opensuse.org/repositories/home:/tange/CentOS_7/repodata/repomd.xml.key
enabled=1
EOF

• install

sudo yum install parallel

• uninstall

sudo yum remove parallel

conda (Linux/Windows/macOS)

• install gnu parallel through conda-forge channel
• install

conda create --name parallel_env --channel conda-forge parallel

• use

conda activate parallel_env

• uninstall

conda remove --name parallel_env --all

Manual Installation

• required command : perl, bzip2
• install to ~/parallel

# change directory to /tmp
cd /tmp

# download
wget https://ftp.gnu.org/gnu/parallel/parallel-latest.tar.bz2

# untar *.tar.bz2
tar jxvf parallel-latest.tar.bz2

# change directory to parallel directory 
cd parallel-*

# configure, make and install
./configure --prefix=/home/$USER/parallel && make && make install

# add gnu parallel path to environment variable
cat << EOF >> ~/.bash_profile
PATH=~/parallel/bin:\$PATH #_gnu_parallel_path_#
EOF

# clean
rm -r /tmp/parallel-*

• logout (Ctrl+D or exit) and login for initializing ~/.bash_profile
• check installation success

parallel --help
man parallel

• uninstall

# remove gnu parallel
rm -r ~/parallel

# remove gnu_parallel_path in profile
sed -i '/#_gnu_parallel_path_#/d' ~/.bash_profile

reference

• https://www.gnu.org/software/parallel
• https://build.opensuse.org/repositories/home:tange/parallel
• README in parallel-latest.tar.bz2

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