UT theoretical chemistry code forum

I have downloaded the vtstscripts.tar.gz and unzipped. Then defined the path in .bash_profile.
Tried to sum the 2 charge density files using the chgsum.pl script using the command
chgsum.pl (AECCAR0) (AECCAR2) (fact1) (fact2)
I got the error,
bash: syntax error near unexpected token `AECCAR0'

Any one can help me in this regard.

Thanks in advance

Do you have perl installed? If you try running the chgsum.pl script without any arguments, do you get an error message that looks like this:

usage: chgsum.pl <CHGCAR1> <CHGCAR2> <fact1> <fact2>

Actually, now that I look at your message, it could be a simpler problem. Try this command:

chgsum.pl AECCAR0 AECCAR2

without the brackets.

If i use the command chgsum.pl AECCAR0 AECCAR2
output is,
Can't open file No such file or directory at /root/SOFTWARES/vtstscripts/chgsum.pl line 6.