Hello everyone,
I am trying to read the value of a macro variable sas from my shell script
code SAS
%let rc1=&x ;
x setenv var &rc1.;
Shell script
period_ex=$(date --date='30 days ago' +%Y%m)
/sas/sasbin/SASFoundation/9.4/sas -sysin /sasdata/04_code_sas/0102_Flux_Client_sas.sas -autoexec /sasdata/04_code_sas/0100_autoexec.sas -NOPRINT -nosyntaxcheck -noerrabend -log /sasdata/07_logs/0102_Flux_Client_sas_$(date +"%Y%m%d_%H%M%S").log -SYSPARM $period_ex%$(date +"%Y%m%d_%H%M%S") -XCMD
echo $var
but the value is empty
Can someone help me please
Short answer: you can't do that.
Longer answer:
When you run SAS from a shell script, the shell forks off a copy of itself that will run the SAS command via the exec() system call. What you manipulate is therefore the environment of a child of the shell that runs the shell script. Since the child has no access to the parent's environment, changes will be lost when the child terminates.
Possible workarounds:
- save the setting of the environment variable to a file and source that in the shell script:
SAS:
data _null_;
file '$HOME/tempscript';
put "VAR=xxx";
run;
shell script:
sas program.sas . $HOME/tempscript rm $HOME/tempscript
- you can set return codes with
abort return &rc.;
and evaluate them in the script
sas program.sas RC=$?
BTW, do test external commands from the commandline before using them in an x statement.
AFAIK, setenv() is a system call (ie for C programming), but not a system command.
Short answer: you can't do that.
Longer answer:
When you run SAS from a shell script, the shell forks off a copy of itself that will run the SAS command via the exec() system call. What you manipulate is therefore the environment of a child of the shell that runs the shell script. Since the child has no access to the parent's environment, changes will be lost when the child terminates.
Possible workarounds:
- save the setting of the environment variable to a file and source that in the shell script:
SAS:
data _null_;
file '$HOME/tempscript';
put "VAR=xxx";
run;
shell script:
sas program.sas . $HOME/tempscript rm $HOME/tempscript
- you can set return codes with
abort return &rc.;
and evaluate them in the script
sas program.sas RC=$?
BTW, do test external commands from the commandline before using them in an x statement.
AFAIK, setenv() is a system call (ie for C programming), but not a system command.
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