我想保持我的.bashrc和.bash_login文件在版本控制，以便我可以在我使用的所有计算机之间使用它们。问题是我有一些操作系统特定的别名，所以我正在寻找一种方法来确定脚本是否在Mac OS X, Linux或Cygwin上运行。
在Bash脚本中检测操作系统的正确方法是什么?
当前回答
试试这个:
DISTRO=$(cat /etc/*-release | grep -w NAME | cut -d= -f2 | tr -d '"')
echo "Determined platform: $DISTRO"
其他回答
bash manpage说变量OSTYPE存储了操作系统的名称:
OSTYPE自动设置为描述bash正在执行的操作系统的字符串。默认为system- 相关的。
它在这里被设置为linux-gnu。
执行以下操作可以帮助正确执行ubuntu检查:
if [[ "$OSTYPE" =~ ^linux ]]; then
sudo apt-get install <some-package>
fi
这将检查一堆已知文件，以确定linux发行版是Debian还是ubuntu，然后它默认为$OSTYPE变量。
os='Unknown'
unamestr="${OSTYPE//[0-9.]/}"
os=$( compgen -G "/etc/*release" > /dev/null && cat /etc/*release | grep ^NAME | tr -d 'NAME="' || echo "$unamestr")
echo "$os"
下面是一种使用/etc/lsb-release和/etc/os-release(取决于您使用的Linux风格)检测基于Debian和RedHat的Linux操作系统的方法，并基于它采取简单的操作。
#!/bin/bash
set -e
YUM_PACKAGE_NAME="python python-devl python-pip openssl-devel"
DEB_PACKAGE_NAME="python2.7 python-dev python-pip libssl-dev"
if cat /etc/*release | grep ^NAME | grep CentOS; then
echo "==============================================="
echo "Installing packages $YUM_PACKAGE_NAME on CentOS"
echo "==============================================="
yum install -y $YUM_PACKAGE_NAME
elif cat /etc/*release | grep ^NAME | grep Red; then
echo "==============================================="
echo "Installing packages $YUM_PACKAGE_NAME on RedHat"
echo "==============================================="
yum install -y $YUM_PACKAGE_NAME
elif cat /etc/*release | grep ^NAME | grep Fedora; then
echo "================================================"
echo "Installing packages $YUM_PACKAGE_NAME on Fedorea"
echo "================================================"
yum install -y $YUM_PACKAGE_NAME
elif cat /etc/*release | grep ^NAME | grep Ubuntu; then
echo "==============================================="
echo "Installing packages $DEB_PACKAGE_NAME on Ubuntu"
echo "==============================================="
apt-get update
apt-get install -y $DEB_PACKAGE_NAME
elif cat /etc/*release | grep ^NAME | grep Debian ; then
echo "==============================================="
echo "Installing packages $DEB_PACKAGE_NAME on Debian"
echo "==============================================="
apt-get update
apt-get install -y $DEB_PACKAGE_NAME
elif cat /etc/*release | grep ^NAME | grep Mint ; then
echo "============================================="
echo "Installing packages $DEB_PACKAGE_NAME on Mint"
echo "============================================="
apt-get update
apt-get install -y $DEB_PACKAGE_NAME
elif cat /etc/*release | grep ^NAME | grep Knoppix ; then
echo "================================================="
echo "Installing packages $DEB_PACKAGE_NAME on Kanoppix"
echo "================================================="
apt-get update
apt-get install -y $DEB_PACKAGE_NAME
else
echo "OS NOT DETECTED, couldn't install package $PACKAGE"
exit 1;
fi
exit 0
Ubuntu Linux的输出示例:
delivery@delivery-E5450$ sudo sh detect_os.sh
[sudo] password for delivery:
NAME="Ubuntu"
===============================================
Installing packages python2.7 python-dev python-pip libssl-dev on Ubuntu
===============================================
Ign http://dl.google.com stable InRelease
Get:1 http://dl.google.com stable Release.gpg [916 B]
Get:2 http://dl.google.com stable Release [1.189 B]
...
尝试使用“uname”。例如，在Linux中:"uname -a"。
根据手册页面，uname符合SVr4和POSIX，所以它应该也适用于Mac OS X和Cygwin，但我不能确认。
顺便说一句:$OSTYPE在这里也被设置为linux-gnu:)
