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#!/bin/bash
# 该脚本的作用是获取Linux操作系统上运行的CPU架构信息，并将其输出到标准输出流。
function exitWithError {
local errorMessage="$1"
echo -e "\033[31m[ERROR] $errorMessage\033[0m" >&2
exit 1
}
# Function to get CPU architecture
function get_cpu_arch {
local commands=("$@")
for cmd in "${commands[@]}"; do
local CpuArch
CpuArch=$(command -v $cmd >/dev/null && $cmd 2>/dev/null || type -p $cmd 2>/dev/null)
if [[ -n "$CpuArch" ]]; then
echo "$CpuArch"
return
fi
done
}
# Check if we are running on a supported Linux distribution
if [[ -f "/etc/os-release" ]]; then
. /etc/os-release
case "$ID" in
"ubuntu"|"debian"|"linuxmint")
# Debian-based distributions
CpuArch=$(get_cpu_arch "dpkg-architecture -qDEB_HOST_ARCH_CPU" "dpkg-architecture -qDEB_BUILD_ARCH_CPU" "uname -m")
;;
"centos"|"fedora"|"rhel")
# Red Hat-based distributions
CpuArch=$(get_cpu_arch "uname -m" "arch" "uname")
;;
*)
# Unsupported Linux distribution
CpuArch=$(get_cpu_arch "uname -m" "arch" "uname")
if [[ -z "$CpuArch" ]]; then
exitWithError "Failed to obtain CPU architecture"
fi
;;
esac
elif [[ -f "/etc/redhat-release" ]]; then
# Older Red Hat-based distributions
CpuArch=$(get_cpu_arch "uname -m" "arch" "uname")
else
exitWithError "Unsupported Linux distribution"
fi
echo "CPU architecture: $CpuArch"
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