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Line 249: − − ==Command-Line Quick Reference Guide== − Below is a list of commands that I use all the time & tend to forget. − ===Generic Linux=== − − {| class="wikitable" − |- − ! COMMAND NAME !! DESCRIPTION − |- − | df -h || shows disk usage in human readable form − |- − | man <commandname> || shows more info about a command − |- − | uname -a || kernel release version − |- − | /usr/sbin/smbd -V || samba version − |- − | /usr/sbin/httpd -v || apache version − |- − | mysql -v || mysql version − |- − | php -v || php version − |- − | mv || moves or renames a file − |- − | cp || copies or backup a file − |- − | rm || removes or deletes a file − |- − | ps -aux|grep <process> || outputs processes running <process> − |- − | ps -AH || report process status − |- − | top || shows processes − |- − | top -i || shows only active processes − |- − | htop || shows processes (more versatile than top) − |- − | iptraf || shows network info − |- − | mc -d || show midnight commander (cli file browser) to navigate through system easily − |- − | cat /proc/mdstat || shows software raid − |- − | host -t mx aol.com || shows the mx records for aol.com − |- − | net groupmap list || shows samba mappings to nt groups − |- − | telinit 1 || changes to single user mode − |- − | ifconfig || shows detailed info on ethernet ports − |- − | grep -r "casesensitivesearch" * || finds all documents containing the criteria in a dir − |- − | tail -f /var/log/<LOGFILE> || realtime viewing of your log file − |- − | hdparm -Tt /dev/mdx (where x is 0,1,2,etc) || shows software raid performance − |- − | mdadm --detail /dev/mdx (where x is 0,1,2,etc) || gives raid info − |- − | tar -czvf foo.tar.gz foo || creates a tar/zip file of a directory − |- − | tar -xvzf foo.tar.gz || untar/unzip a tar/zip file − |- − | scp -P <ssh_portnumber> foo.tar.gz <user>@<other_server_ipaddress>:/opt || transfers file to another server in /opt directory − |- − | rsync --progress -te "ssh -p <ssh_portnumber>" foo <other_server_ipaddress>:/opt || transfers file to another server − |- − | sed -i s/foo/fee/g <FILENAMEORPATHTODIR> || replaces foo with fee − |} − − − Estimate file space usage - drill down into directories − cd / − du --si --max-depth 1 − cd /home − du --si --max-depth 1 − cd /home/e-smith − du --si --max-depth 1 − − ===RPM's=== − − {| class="wikitable" − |- − ! Command !! Explanation − |- − | rpm -qa || shows all rpms installed − |- − | rpm -qa --last || shows all rpms installed & installation date − |- − | rpm -q || asks for rpm info − |- − | rpm -qi || asks for detailed rpm info − |- − | rpm -ql <packagename> || lists all files in a package − |- − | rpm -qf <filename> || reports what package a file belongs to − |} − − ===YUM'ing and repositories=== − {| class="wikitable" − |- − ! Command !! Explanation − |- − | yum install <packagename> || installs packagename & any package it may need − |- − | yum remove <packagename> || removes packagename − |- − | yum list updates || list updates to any installed package − |- − | yum list available || list available packages in all repos not already installed − |- − | yum list available |grep <reponame> || list available packages -shows only from repo name − |- − | yum search <packagename> || lists all packages in all repos matching packagename − |- − | yum clean all || Is used to clean up various things which accumulate in the yum cache − |- − | yum --enablerepo=<reponame> <command> || enables a repo not normally enabled − |- − | /sbin/e-smith/audittools/newrpms || shows all extra packages installed − |- − | /sbin/e-smith/audittools/repositories || show all repositories and if they are activated or not − |- − | db yum_repositories show <reponame> || show properties of the repository <reponame> '''(you may use TAB to auto-complete your command line)''' − |} − − ====Restoring Default Yum Repositories==== − − {{note box|If you have problems with your yum setup you may have entered incorrect repository values. Remove the current values and restore the original setting with these commands}} − − cd /home/e-smith/db/ − mv yum_repositories yum_repositories.po − /etc/e-smith/events/actions/initialize-default-databases − − Now you have a clean install, you can re-add 3rd party repos as described above − − signal-event yum-modify − − and check if you can update your server − − yum update
→Command-Line Quick Reference Guide
{{tip box|msg=It is possible to use putty if you are afraid about some commands in a terminal, you can find a lot of examples by typing this in google [https://www.google.com/search?q=tunneling+by+putty tunneling by putty]}}
{{tip box|msg=It is possible to use putty if you are afraid about some commands in a terminal, you can find a lot of examples by typing this in google [https://www.google.com/search?q=tunneling+by+putty tunneling by putty]}}
==SME Server specific==
==SME Server specific==