LINUX Clouds

Follow these steps Take the backup of /var/lib/rpm Directory 1) tar zcvf /var/lib/rpm.backup.tar.gz /var/lib/rpm Verify Integrity 2) cd /var/lib/rpm 3) rm –f __db* 4) /usr/lib/rpm/rpmdb_verify Packages Dump & Load Package 5) mv Packages packages.backup 6) /usr/lib/rpm/rpmdb_dump Packages.backup | /usr/lib/rpm/rpmdb_load Packages 7) /usr/lib/rpm/rpmdb_verify Packages 8) rpm –qa Final Step to rebuild database 9) rpm –vv –rebuilddb

bash-3.2$ grep 'pujapr\|jayag\|mohanbn\|mshakti' src/gem/raw/passwd pujapr:$1$vP4gxDwy$hdNlWdCYkvprTXiv6UJUi/:51692:100:Puja Priya:/home/pujapr:/bin/bash jayag:$1$VcnkwPKx$noVX0HZBiUT1HPv7./gup.:56408:100:Jayaprada Gunturi:/home/jayag:/bin/bash mshakti:$1$IJL3IVaE$Cbeeef8v61BB5QzYfXkIN/:58885:100:Sakthi Murugan Subramani:/home/mshakti:/bin/bash mohanbn:$1$5qWwhwXu$5Ptf5w3IBW35fuXAbk4H60:25807:100:Mohan Babu N:/home/mohanbn:/bin/bash

[root@lobbynet-38 ~]# showmount -e 172.16.188.10 mount clntudp_create: RPC: Program not registered just restart the nfs service again [root@lobbynet-38 ~]# /etc/init.d/nfs restart Shutting down NFS mountd: [FAILED] Shutting down NFS daemon: [FAILED] Shutting down NFS quotas: [FAILED] Shutting down NFS services: [ OK ] Starting NFS services: [ OK ] Starting NFS quotas: [ OK ] Starting NFS daemon: [ OK ] Starting NFS mountd: [ OK ]

#!/bin/bash echo $# ---> This will calculate the number of arugents given at command prompt seq $1 $2 --> $1 will be first argument & $2 will be second argument [root@noisecover-dr Scripts]# ./pospar.sh 2 7 9 10 --> I have given 4 arguments 4 --> total number of arguments 2 3 4 5 6 7

See all the arrays at same time [root@test1 ~]# echo "${PROD[*]} " items motels teen [root@test1 ~]# printf "%s\n" "${PROD[*]} " items motels teen

[root@test1 ~]# declare -a PROD[0]="items" PROD[1]="motels" PROD[2]="teen" [root@test1 ~]# echo "${PROD[1]} " motels [root@test1 ~]# echo "${PROD[2]} " teen [root@test1 ~]# echo "${PROD[1]} " motels [root@test1 ~]# echo "${PROD[0]} " items [root@test1 ~]# echo $PROD --> by default showing array[0] items

declare -r name=davinder echo $name davinder name=davi -bash: declare: name: readonly variable now i am unable to revert it back....