最後更新: 2023-09-05

目錄

bash 5.X on Centos 7

mkdir /usr/src; cd !$

BASH=bash-5.2

wget https://ftp.gnu.org/gnu/bash/${BASH}.tar.gz

tar -zxf ${BASH}.tar.gz

cd $BASH

# 優化

CFLAGS="-march=x86-64 -O3 -pipe"
CXXFLAGS="${CFLAGS}"
export CFLAGS CXXFLAGS

./configure --prefix=/opt/bash

make -j; make install

/opt/bash/bin/bash --version

更換系統的 bash

Script

build-loader.sh

#!/usr/bin/env bash
...

env could be considered "portable"

Using #!/usr/bin/env NAME makes the shell search for the first match of NAME in the $PATH environment variable.

echo $PATH

/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin

使用自行 compile 的 bash

export PATH=/opt/bash/bin:$PATH