SAS on Unix/Linux- from the Terminal to GUI

Home , Cat (Unix), Cu (Unix utility), Dd (Unix), Diff, JED (text editor), Mv

SAS on Unix/Linux- from the terminal to GUI.

L Gakava & S Kannan – October 2015

Agenda All about the terminal o Customising your terminal o Basic Linux terminal commands o Running SAS in non-interactive mode o Available SAS file editors o What to look out for on Unix/Linux platform

All about Graphical User Interface (GUI) o Launching SAS GUI. o Changing SAS default behaviour o SAS ToolBox commands o SAS editor commands. Motivation - Why Use SAS On Unix/Linux?

Using SAS on UNIX/Linux Platform o Company migrating to UNIX/Linux o Joining a company which is using SAS on the Linux platform

Challenge Too many commands to learn!

Why Use SAS On Unix/Linux o Customising Linux sessions will ensure you increase work efficiency by taking advantage of the imbedded Linux tools. In general transferring and running large files will be quicker in Linux compared to PC*.

Terminal

What to expect when you login? % pwd /home/username % ls

Customise: Update .bashrc file with this line PS1='$IV $PWD$EE> ' will change your prompt to show the following:

/home/username>

Terminal Navigation

Command Meaning ls list files and directories ls -a list all files and directories mkdir make a directory cd directory change to named directory cd change to home-directory cd ~ change to home-directory cd .. change to parent directory Terminal Navigation Command Meaning cp file1 file2 copy file1 and call it file2 mv file1 file2 move or rename file1 to file2 rm file remove a file rmdir directory remove a directory cat file display a file less file display a file a page at a time head file display the first few lines of a file tail file display the last few lines of a file grep 'keyword' file search a file for keywords count number of lines/words/ wc file characters in file Terminal useful commands

How do you find out if a version of a file has changed?

/home/username>diff file1.txt file2.txt

Command to compare two files. This is useful to compare outputs that have been re-run with an older version. This will compare line by line, hence it’s only useful to compare different versions of the same file. This command cannot be used to compare datasets. Terminal useful commands

How do I search for text in multiple files?

/home/username>grep -i

How do I run SAS in non-interactive mode/batch?

/home/username>sas

How do I run code that is resource intensive?

/home/username> sas –memsize max mysascode.sas

Editing SAS files How do I edit SAS files? Linux editors for plain text can be divided into two categories: 1. Console text editors- include emacs, jed, nano, pico and vim. 2. Graphical GUI editors - include gvim, gEDIT, Nedit, Slick edit, Tea and Sublime The advantage of the GUI editor is intuitive user friendly interface while the benefit of the console text editor is the suitability over long distance network connections which may or may not provide suitable bandwidth or reliability which would both be required by the GUI editors for remote operation. Console based text editors. GUI editors Face to face meeting or teleconference.

What to look out for?

LINUX platform is case sensitive and file directories and external file names called within SAS are case sensitive but the SAS session is not.

Code written in PC SAS might not run on SAS because the Microsoft Windows and Linux operating systems store text files in a different format. It is good practice convert a file from Microsoft Windows to Linux format by using a ‘dos2unix’ command on the terminal.

/home/username> dos2unix mysascode.sas

Still other things Other things to keep in mind Use the ‘&’ at the end of Linux commands. This means the command will be executed in the background and you can continue using the terminal. Otherwise you will have to wait for the command to execute before you can use the terminal.

If you have a 3-button mouse you can copy text by highlighting the text using your mouse. This automatically copies the text and you can paste the text by pressing down the wheel on the mouse.

Terminal help

If in doubt man it!!!

Type man or fman command to access the system's reference manuals. It can be used to search for occurrences of specific text and other useful functions. ALL ABOUT GUI /home/username>sas&

Changing default behavior

Selecting and copying text

Changing default behavior Truncation of inserted text?

Text is not split at the cursor when you press ENTER or RETURN?

I cannot use PC shortcuts to copy and paste texts? Modify the entries in the SAS: KEYS window

Changing default behavior Remember my configuration settings? SAS ToolBox Program editor commands Editing commands Copy c[N] Mark 1 or N lines to be copied cc Mark boundary of block to be copied Move m[N] Mark 1 or N lines to be moved mm Mark boundary of block to be moved Delete d[N] Mark 1 or N lines to be deleted dd Mark boundary of block to be deleted Insert ia[N] Insert 1 or N lines after this point i[N] Insert 1 or N lines from this point ib[N] Insert 1 or N lines before this point Other useful editing commands Changing case cu[N] Change 1 or N lines to upper case cl[N] Change 1 or N lines to lower case ccu Change block to upper case ccl Change block to lower case mcu Change marked text to upper case mcl Change marked text to lower case Justification jl[N] Left justify line to position N jjl[N] Left justify block to position N jc[N] Centre justify to line length N jjc[N] Centre justify block to line length N jr[N] Right justify 1 or N lines jjr Right justify block

Other useful editing commands Repetition r[N] Repeat 1 or N times rr Repeat block Indentation >[N] Right shift 1 or N spaces >>[N] Right shift block 1 or N spaces )[N] Right shift destructive 1 or N spaces ))[N] Right shift destructive block 1 or N spaces <[N] Left shift 1 or N spaces <<[N] Left shift block 1 or N spaces ([N] Left shift destructive 1 or N spaces (([N] Left shift destructive block 1 or N spaces

CONCLUSION

§ This presentation gives the basis for a less painful transition to using SAS on Linux from PC. o There is greater flexibility in using Linux and the reader is encouraged to explore this in more detail to increase their productivity when using SAS on Linux.

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