topic Re: Need unix command when we work with SAS in SAS Enterprise Guide

Need unix command when we work with SAS

ravi999985 — Tue, 09 Apr 2024 03:46:32 GMT

I want to know which UNIX command generally uses when we work with SAS. I know some of the commands like CP, NO HUP, but I want to know more which we can use on a daily basis while we work with SAS.

Re: Need unix command when we work with SAS

SASKiwi — Tue, 09 Apr 2024 04:26:16 GMT

There are literally hundreds of Unix commands and they vary in syntax between Unix flavours. If you have a specific requirement then post what it is but you should also just be able to google and find the command you want anyway.

Re: Need unix command when we work with SAS

Kurt_Bremser — Tue, 09 Apr 2024 06:51:44 GMT

Just a few off the top of my head

rm - removes a file or directory (directory must be empty)
mv - moves (renames) a file or directory
cp - copies a file
mkdir - creates a directory
cd - changes to a directory
pwd - shows the current directory
find - finds files in a directory tree
ls - lists contents of a directory
grep - finds text in a file or input stream
head - displays top of a file
tail - displays end of a file
wc - counts words, lines, characters in a file
ps - lists current processes
date - displays dates (current, or in relation to another date)
pg, more, less - displays files one page at a time
sort - sorts an input stream
cut - extracts columns from an input stream
who - shows currently logged in users, but can also (-b) display the last time the system was started

It is very important to understand the piping mechanism, which allows to direct the output of one command to the input of another, e.g.

ls | grep x

displays all directory entries having an x in their name, or

sort < a > b

reads file a, and writes the sorted output to file b.

Also learn the syntax of the shell (most often bash), so you can write scripts with conditions and loops.

Re: Need unix command when we work with SAS

yabwon — Tue, 09 Apr 2024 08:32:28 GMT

#Maxim6

Try YT video tutorials:

https://www.youtube.com/results?search_query=basic+unix+commands

and of course: google -> "basic unix commands" , just from the top:

https://www.math.utah.edu/lab/unix/unix-commands.html

https://www.geeksforgeeks.org/essential-linuxunix-commands/

https://kb.iu.edu/d/afsk

Bart

Re: Need unix command when we work with SAS

yabwon — Tue, 09 Apr 2024 08:35:38 GMT

P.S. One comment. Remember, SAS allows you to write code which is OS independent. Try to use this functionality as often as possible, to make your programs easily portable without need of changing source code.

Re: Need unix command when we work with SAS

Sajid01 — Wed, 17 Apr 2024 14:11:35 GMT

Hello @ravi999985
It depends on what you are doing.
1.For any one using SAS EG for using SAS on a UNIX server, a very minimal knowledge of UNIX is sufficient (case sensitivity, file /path conventions etc, may be ssh/scp).

2.For someone using the Unix shell to write and execute SAS code, write/use shell scripts then a good working knowledge of the shell (BASH/KSH whichever that is being used) is needed. Focus on developing a knowledge of shell scripting/programming rather than memorizing a few commands.