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generic_linux_commands

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GENERIC LINUX COMMANDS

LMS PROD OPEN NEW TERMINAL

gnome-terminal –geometry=157×54+0+0 –tab –command=“ssh lms05.lms.ecu.edu.au” –tab –command=“ssh lms07.lms.ecu.edu.au” –tab –command=“ssh lms08.lms.ecu.edu.au” –tab –command=“ssh lms10.lms.ecu.edu.au” –tab –command=“ssh lms14.lms.ecu.edu.au” &

RUN COMMAND AS ANOTHER USER

# sudo -u zabbix /app/wcms/bin/webmonitor homepage_nocache

LIST LAST 5 RPMS INSTALLED

# rpm -qa –queryformat '%{installtime} (%{installtime:date}) %{name}\n' | sort -n | tail -5

STRIP NON-DIRECTIVES FROM CONFIG

# egrep -v “^#|^$|[ ]*#” /etc/httpd.alt/conf/httpd.conf | less

FIND SEGFAULTS IN APACHE ERRORS SORTED BY DATE

# zcat /var/log/httpd/error_log.*.gz |grep Seg|sort -k2|less # cat /var/log/httpd/error_log |grep Seg|sort -k2|less

DISPLAY LIST OF LAST REBOOT ENTIRES

# last reboot | less

# ln -s /app/wcms/bin/findroots /usr/local/bin/

LOGIN TO INTERNAL FIREWALL (from 139.230.244.)

# telnet jogwint.net.ecu.edu.au 259

READ SSH KEY PROPERTIES

$ ssh-keygen -lf .ssh/id_rsa.pub

SET PEAR TO USE PROXY

SET PROXY ENV

TAR CHECK

# tar -ztvf ../../wcms.ecu/bak/ecu_3_20_3-2009-08-25_10-08-backup.tar.gz|grep .dump

EXTRACT SINGLE FILE FROM TAR

$ tar -zxvf ../../wcms.ecu/bak/ecu_3_20_3-2009-08-25_13-56-backup.tar.gz ecu_3_20_3/wcmsqa-2009-08-25_13-56.dump

TAR WITH EXCLUDE

$ tar cvzf filename.tar.gz /dir1/dir2 –exclude “/dir1/dir2/direxcluded”

MOVE FOLDER INTO ANOTHER FOLDER

# rsync -av CLT webarchive/

RSYNC to local desktop

# rsync -avze ssh weekly/StaffDirLINUX sspaldin@10.31.66.91:/cygdrive/c/Users/sspaldin/Desktop rsync -avze ssh sspaldin@10.31.66.91:/cygdrive/c/Users/sspaldin/Desktop

RSYNC EXCLUDE

$ rsync -avze ssh –exclude 'cache' –exclude 'data' root@webcms-jo-app-prod01.cit.ecu.edu.au:/app/wcms/ecu_3_22_3/ .

RESTORE FILES FROM BACKUP

# dsmc restore -inactive -pick /s02/vhosts/web01.ads.ecu.edu.au/htdocs/server/code/

RESTORE FILES TO A DIFFERENT LOCATION

# dsmc restore -pick -inactive -todate=29-09-2009 “/s01/wcms/ecu_3_22_3/data/private/logs/*.lo*” /tmp/restore/ -preser=none

Note: symbolic links don't work

SOSREPORT

# sosreport -k apache.log=on,cluster.gfslockdump=on,cluster.lockdump=on,devicemapper.lvmdump=on,general.syslogsize=on,kernel.modinfo=on,networking.traceroute=on,rpm.rpmva=on,yum.yumlist=on,

LIST PHP.INI

# grep -v “^;” /etc/php.ini | grep -v “^$” | less

LIST PACKAGES

# rpm -qa |sort > /app/wcms.ecu/`hostname`-rpms.txt

LIST FILES IN PACKAGE

# rpm -ql httpd

LIST OPEN FILES, SORTED BY SIZE, OUTPUT TO DATED FILE

# lsof /s02 |sort -nr –key=7 |awk '{print $1,$2,$3,$7,$9}' >/tmp/lsof_s02_`date +%Y-%m-%dT%H-%M-%S`.txt

WGET A PAGE SPECIFYING A HEADER AND OUTPUT FILE AND DISPLAYING HEADERS

# wget -S –no-cache –header “Host: www.ecu.edu.auhttp://www.ecu.edu.au/ -O index.html

WATCH APACHE LOG FOR WARNINGS

# tail -f -n0 /var/log/httpd/error_log|grep warning

UNTAR SINGLE FILE/DIRECTORY

# tar -x ecu_3_28_5/data/private/conf/* -vzf ecu_3_28_5-2011-08-11_11-23-backup.tar.gz # tar -x ecu_3_28_5/core/lib/web/images/icons/asset_map/matrix_logo.gif -vzf ecu_3_28_5-2011-08-11_11-23-backup.tar.gz

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