Datastage Basic Commands to release jobs,Shutdown and retart Datastage client cmmands and basic Unix commands

1. What is the difference between root and non root install? 2. Have you created User groups and Users? $ group -c ourgroup $ group -m groupname userid $ group -o groupname userid $ group -O groupname userid # adduser --ingroup grname userid 3. How to kill the process? $ ps $kill -9/-1 PID 4. How to Unlock DataStage Jobs if the job is used by the another user or Hanged out? su - dsadm {enter your password for dsadm, else you can use root} cd `cat /.dshome` . ./dsenv bin/uvsh list.readu {find the row that shows your lock, look over to the USERNO column and get that number} UNLOCK USER nnnnn ALL QUIT 1. CD To $DSHOME/../Projects/ProjectName 2. Type the Following and press Enger. INSERT INTO VOC (F0, F1, F2, F3, F4, F5) VALUES ('UNLOCK','V', 'list_readu','E','BV','unlock') a. cd ${INSTALLATION_PATH}/DSEngine/bin b. ./dsenv c. ./uv –admin –stop 5. How to Add Unlock command to Vocabulary file(VOC)? CD To $DSHOME/../Projects/ProjectName INSERT INTO VOC (F0, F1, F2, F3, F4, F5) VALUES ('UNLOCK','V', 'list_readu','E','BV','unlock') 6. What is the command to Restart the DataStage Server? What is UV over there 7. Tell me some problems you may encounter when the DataStage running on UNIX platforms? 1. Running out of file units, 2. Running out of memory(Heap error), 3. open connection, 4. ODBC connection problems. 8. What is Heap Error? Anything to do with "heap" is about allocation of memory resources. Either install more memory in your server(s), or reduce overall demand for memory, perhaps by running less no. of jobs simultaneously, or by running on a configuration with less no. of processing nodes. 9. What happens when you shut down the Datastage server without closing all client connections? There may be an open connection from a Datastage client, Without shutting down the client processes, sockets are released on most platforms after the timeout period of about 6 - 10 minutes, depending on system tuning. 10. Which command is used to know whether the datastage server is running or not? ps –ef | grep dsrpc (this process should not be running when DataStage has stopped successfully) OR #netstat | grep dsrpcd 11. How do you restart the failure job in sequencer using Administrator or Director? Sequence(Add check points on failure) 1. What does the pkgadd command do? 2. How do you create a solaris package? 3. How do you view shared memory statistics? 4. How do you get system diagnostics information? 5. What is OBP and how do you access it? 6. What is LOM and how do you access it? 7. What is VTS? 8. What is an alternative to the “top” command on Solaris? 9. What is /etc/system for? 10. What does ndd do? 11. What does init 5 do? 12. What does init 0 do? 13. How do you boot from CD-ROM? 14. What is jumpstart? 15. How do you boot from a Network with jumpstart? 16. What is JASS? 17. What is the difference between NFS version 2 and NFS version 3? 18. What is RPC? Why do I need it? 19. Are kernel parameters tunable during runtime? 20. What does fmthard do? 21. Job Scheduling; mainly crontab, at, batch command 22. Backup stetegy; incremental, full system back up; diff between tar & ufsdump 23. diff between hard link & softlink 24. How to list only the directories inside a directory (Ans. ls -l|grep "^d") 25. RAID levels; pros & cons of diffrent levels; what is RAID 1+0 26. How to recover a system whose root password has lost? 27. What is a daemon? 28. How to put a job in background & bring it to foreground? 29. What is default permissions for others in a file? 30. Questions on shell initialization scripts? 31. Questions on restricted shell 32. What is diff betwn grep & find? 33. What is egrep? 34. Questions on shell programming 35. What is a pipe? 36. Questions on Solaris patch management like pkgadd etc 37. Questions on file system creation; actually what happens when we create a file system? 38. Questions on RBAC? what is a role accound & what is a profile? 39.From command line how will you add a user account? the full command will all arguments. 40.Fs it advisable to put a swap partion in RAID1 (mirroring?) pros & cons? 41. List the files in current directory sorted by size ? - ls -l | grep ^- | sort -nr 42. List the hidden files in current directory ? - ls -a1 | grep "^\." 43. Delete blank lines in a file ? - cat sample.txt | grep -v ‘^$’ > new_sample.txt 44. Search for a sample string in particular files ? - grep .Debug. *.confHere grep uses the string .Debug. to search in all files with extension..conf. under current directory. 45. Display the last newly appending lines of a file during appendingdata to the same file by some processes ? - tail .f Debug.logHere tail shows the newly appended data into Debug.log by some processes/user. 46. Display the Disk Usage of file sizes under each directory in currentDirectory ? - du -k * | sort .nr (or) du .k . | sort -nr 47. Change to a directory, which is having very long name ? - cd CDMA_3X_GEN*Here original directory name is . .CDMA_3X_GENERATION_DATA.. 48. Display the all files recursively with path under current directory ? - find . -depth -print 49. Set the Display automatically for the current new user ? - export DISPLAY=`eval ‘who am i | cut -d"(" -f2 | cut -d")" -f1′`Here in above command, see single quote, double quote, grave ascent is used. Observe carefully. 50. Display the processes, which are running under yourusername ? - ps .aef | grep MaheshvjHere, Maheshvj is the username. 51. List some Hot Keys for bash shell ? - Ctrl+l . Clears the Screen. Ctrl+r . Does a search in previously given commands in shell. Ctrl+u - Clears the typing before the hotkey. Ctrl+a . Places cursor at the beginning of the command at shell. Ctrl+e . Places cursor at the end of the command at shell. Ctrl+d . Kills the shell. Ctrl+z . Places the currently running process into background. 52. Display the files in the directory by file size ? - ls .ltr | sort .nr .k 5 53. How to save man pages to a file ? - man | col .b > Example : man top | col .b > top_help.txt 54. How to know the date & time for . when script is executed ? - Add the following script line in shell script.eval echo "Script is executed at `date`" >> timeinfo.infHere, .timeinfo.inf. contains date & time details ie., when script is executed and history related to execution. 55. How do you find out drive statistics ? - iostat -E 56. Display disk usage in Kilobytes ? - du -k 57. Display top ten largest files/directories ? - du -sk * | sort -nr | head 58. How much space is used for users in kilobytes ? - quot -af 59. How to create null file ? - cat /dev/null > filename1 60. Access common commands quicker ? - ps -ef | grep -i $@ 61. Display the page size of memory ? - pagesize -a 62. Display Ethernet Address arp table ? - arp -a 63. Display the no.of active established connections to localhost ? - netstat -a | grep EST 64. Display the state of interfaces used for TCP/IP traffice ? - netstat -i 65. Display the parent/child tree of a process ? - ptree Example: ptree 1267 66. Show the working directory of a process ? - pwdx Example: pwdx 110 67. Display the processes current open files ? - pfiles Example: pfiles 1267 68. Display the inter-process communication facility status ? - ipcs 69. Display the top most process utilizing most CPU ? - top .b 1 70. Alternative for top command ? - prstat -a