RE: FATAL ERROR: sed: can't read restraints/dihe.txt: No suchfile or directory

From: Ajian (ajian.he_at_hit.edu.cn)
Date: Tue Jan 11 2022 - 22:59:51 CST

Dear Moumita,

Thank you very much! I can not localize the dihe.txt file in the CHARMM_GUI outcome package, I think it is the issue of the CHARMM_GUI, maybe I need make a dihedral restraint file by myself.

Best,

Thank you.

Ajian

Sent from Mail for Windows

From: Moumita Saharay
Sent: Wednesday, January 12, 2022 12:01 PM
To: namd-l_at_ks.uiuc.edu; Ajian
Subject: Re: namd-l: FATAL ERROR: sed: can't read restraints/dihe.txt: No suchfile or directory

Dear Ajain,

It is clear from the error message that NAMD is unable to locate restraints/dihe.txt file. 
Please give a proper path for the same.

best,
Moumita

On Wed, Jan 12, 2022 at 5:45 AM Ajian <ajian.he_at_hit.edu.cn> wrote:
 
Dear all,
 
I followed the CHARMM-GUI video demo of free energy calculator: relative ligand binder for membrane systems (https://urldefense.com/v3/__https://charmm-gui.org/?doc=demo&id=fec&lesson=7__;!!DZ3fjg!oDhla4YCA0fTNwhWrr8V5Eysk_ILVgrbVex21bqXXCPz0H7XPZlGB6dR46BleEovyw$ ), and got all the files needed to run NAMD. I tar the zip file in my working folder and enter into the ligand or complex folder and follow the instruction,
 
./1_mkdir.pl
./2_mkconf.pl
 
Looks normal, however when I run bash file
#!/bin/bash
cnt=1
while [ ${cnt} -le 6 ]
do
    namd2 equ_site_${cnt}.inp | tee equ_site_${cnt}.out
    cnt=$[$cnt+1]
done
 
there is a fatal error mesg like this,
 
FATAL ERROR: sed: can't read restraints/dihe.txt: No such file or directory
    while executing
"exec sed -e "s/\$FC/500/g" restraints/dihe.txt > restraints/$outputname.dihe"
 (file "equ_site_1.inp" line 171)
  
  
I run it in my working station, not the cluster, my NAMD version is NAMD_2.14_Linux-x86_64-netlrts
 
Any help or suggestion?
 
Thank you.
 
 
Ajian
 
 
Sent from Mail for Windows
 
 
 

-- 
Dr. Moumita Saharay
Assistant Professor, 
Department of Systems and Computational Biology, 
School of Life Sciences, 
University of Hyderabad, 
Gachibowli, Hyderabad, India

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