linux输入yum后提示： -bash: /usr/bin/yum: No such file or directory的解决方案

今天在安装程序时，发现有一个插件未安装，我就随手敲了一个命令,看都没看

yum remove yum

然后就杯具了...

[root@localhost ~]# yum -bash: /usr/bin/yum: No such file or directory

这个粗心的手误倒不至于让整个系统瘫痪，yum 却无法使用了。于是，我试着折腾了一番

rpm -ivh --nodeps http://mirrors.163.com/centos/5/os/x86_64/CentOS/yum-fastestmirror-1.1.16-14.el5.centos.1.noarch.rpm rpm -ivh --nodeps http://mirrors.163.com/centos/5/os/x86_64/CentOS/yum-metadata-parser-1.1.2-3.el5.centos.x86_64.rpm rpm -ivh --nodeps http://mirrors.163.com/centos/5/os/x86_64/CentOS/yum-3.2.22-26.el5.centos.noarch.rpm

关于rpm --nodeps的解释

--nodeps don't verify package dependencies

接下来，再次尝试输入yum,结果再次出现莫名错误

[root@localhost ~]# yum There was a problem importing one of the Python modules required to run yum. The error leading to this problem was: libxml2.so.2: cannot open shared object file: No such file or directory Please install a package which provides this module, or verify that the module is installed correctly. It's possible that the above module doesn't match the current version of Python, which is: 2.4.3 (#1, Nov 11 2010, 13:30:19) [GCC 4.1.2 20080704 (Red Hat 4.1.2-48)] If you cannot solve this problem yourself, please go to the yum faq at: http://wiki.linux.duke.edu/YumFaq

因为yum调用的是python,运行 Python，试下是否可行

[root@localhost~]# python Python 2.4.3 (#1, Nov 11 2010, 13:30:19) [GCC 4.1.2 20080704 (Red Hat 4.1.2-48)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import yum Traceback (most recent call last): File "<stdin>", line 1, in ? File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 54, in ? import transactioninfo File "/usr/lib/python2.4/site-packages/yum/transactioninfo.py", line 31, in ? from sqlitesack import YumAvailablePackageSqlite File "/usr/lib/python2.4/site-packages/yum/sqlitesack.py", line 26, in ? import yumRepo File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 32, in ? import sqlitecachec File "/usr/lib64/python2.4/site-packages/sqlitecachec.py", line 19, in ? import _sqlitecache ImportError: libxml2.so.2: cannot open shared object file: No such file or directory >>>

提示缺少libxml2.so.2，安装一下试试

rpm -ivh http://mirrors.163.com/centos/5/os/x86_64/CentOS/libxml2-2.6.26-2.1.2.8.x86_64.rpm

再次测试运行下yum命令，结果正常了，大喜

[root@localhost ~]# yum Loaded plugins: fastestmirror You need to give some command usage: yum [options] COMMAND List of Commands: check-update Check for available package updates clean Remove cached data deplist List a package's dependencies downgrade downgrade a package erase Remove a package or packages from your system groupinfo Display details about a package group groupinstall Install the packages in a group on your system grouplist List available package groups groupremove Remove the packages in a group from your system help Display a helpful usage message info Display details about a package or group of packages install Install a package or packages on your system list List a package or groups of packages localinstall Install a local RPM makecache Generate the metadata cache provides Find what package provides the given value reinstall reinstall a package repolist Display the configured software repositories resolvedep Determine which package provides the given dependency search Search package details for the given string shell Run an interactive yum shell update Update a package or packages on your system upgrade Update packages taking obsoletes into account options: -h, --help show this help message and exit -t, --tolerant be tolerant of errors -C run entirely from cache, don't update cache -c [config file] config file location -R [minutes] maximum command wait time -d [debug level] debugging output level --showduplicates show duplicates, in repos, in list/search commands -e [error level] error output level -q, --quiet quiet operation -v, --verbose verbose operation -y answer yes for all questions --version show Yum version and exit --installroot=[path] set install root --enablerepo=[repo] enable one or more repositories (wildcards allowed) --disablerepo=[repo] disable one or more repositories (wildcards allowed) -x [package], --exclude=[package] exclude package(s) by name or glob --disableexcludes=[repo] disable exclude from main, for a repo or for everything --obsoletes enable obsoletes processing during updates --noplugins disable Yum plugins --nogpgcheck disable gpg signature checking --disableplugin=[plugin] disable plugins by name --enableplugin=[plugin] enable plugins by name --skip-broken skip packages with depsolving problems --color=COLOR control whether color is used Plugin Options:

最后，赶紧更新一下系统吧

yum update

好了 这样yum问题就完全解决了！大家可以尝试下，感谢你对的支持。