如何检查linux上安装lib是否齐全 Linux下怎样检查，如何查看某软件包是否已经安装
\u5982\u4f55\u77e5\u9053\u5728linux\u4e0b\u662f\u5426\u5df2\u7ecf\u88c5\u4e86\u67d0\u4e2a\u5e93\u6216\u8005\u67d0\u4e2a\u8f6f\u4ef6\uff1fbaidu\u4e0b\uff0c\u5982\u4f55\u67e5\u770blinux\u7684\u5b89\u88c5\u5305\u547d\u4ee4\u3002
\u6216\u8005\u7528yum\u547d\u4ee4\uff0c\u8054\u7f51\uff0c\u81ea\u5df1\u5b89\u88c5\u4e86\u3002
1\u3001rpm\u5305\u5b89\u88c5\u7684\uff0c\u53ef\u4ee5\u7528rpm -qa\u770b\u5230\uff0c\u5982\u679c\u8981\u67e5\u627e\u67d0\u8f6f\u4ef6\u5305\u662f\u5426\u5b89\u88c5\uff0c\u7528 rpm -qa | grep \u201c\u8f6f\u4ef6\u6216\u8005\u5305\u7684\u540d\u5b57\u201d\u3002
rpm -qa | grep ruby
2\u3001\u4ee5deb\u5305\u5b89\u88c5\u7684\uff0c\u53ef\u4ee5\u7528dpkg -l\u80fd\u770b\u5230\u3002\u5982\u679c\u662f\u67e5\u627e\u6307\u5b9a\u8f6f\u4ef6\u5305\uff0c\u7528dpkg -l | grep \u201c\u8f6f\u4ef6\u6216\u8005\u5305\u7684\u540d\u5b57\u201d\uff1b
dpkg -l | grep ruby
3\u3001yum\u65b9\u6cd5\u5b89\u88c5\u7684\uff0c\u53ef\u4ee5\u7528yum list installed\u67e5\u627e\uff0c\u5982\u679c\u662f\u67e5\u627e\u6307\u5b9a\u5305\uff0c\u547d\u4ee4\u540e\u52a0 | grep \u201c\u8f6f\u4ef6\u540d\u6216\u8005\u5305\u540d\u201d\uff1b
yum list installed | grep ruby
4\u3001\u5982\u679c\u662f\u4ee5\u6e90\u7801\u5305\u81ea\u5df1\u7f16\u8bd1\u5b89\u88c5\u7684\uff0c\u4f8b\u5982.tar.gz\u6216\u8005tar.bz2\u5f62\u5f0f\u7684\uff0c\u8fd9\u4e2a\u53ea\u80fd\u770b\u53ef\u6267\u884c\u6587\u4ef6\u662f\u5426\u5b58\u5728\u4e86\u3002
一般交叉编译器里都有一个lib的文件夹的，把你的lib文件cp到这里应该就可以了。也可以用gcc带的-L，例如:arm-linuc-gcc -L/root/lib xx.c -o xx.o
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