Hi, I wrote a program in PERL which creates a file with .net extension (.. xyz.net). I want to call R from within my PERL program, execute 3-line command in 'R', store the output and get back to PERL program. RSPerl is of omegahat is a good software which creates interface between R and PERL, but unfortunately it doesn't work on my Windows XP. I used the following command in PERL to call R @args = ('C:\Program Files\R\R-2.9.0\bin\Rgui.exe'); system(@args) == 0 or die "system @args failed: $!"; which opens R console. Now, I want to run the following command in R, close R and get back to original PERL program g <- read.graph("f://xyz.net", "pajek") d<-degree(g,mode="in") power.law.fit(d+1) I am struck at this point, could any one help me out ? In the past, there was a discussion in this forum titled "Problem calling R from within perl script on Windows ......", from there I picked up the system command to call R from within PERL. Thanks barrry ! I am hoping that somebody from that thread could help me.. ! Thanks Chakri -- View this message in context: http://r.789695.n4.nabble.com/Execute-commands-in-R-within-PERL-Program-tp2278255p2278255.html Sent from the R help mailing list archive at Nabble.com.