OK Lorenzo, thank you ! As an alternative question, would it be possible to put that loop while renaming of the chains in the processed PBD within the bash loop?
Here is an idea #!/bin/bash # this script rename chains in pdb to "empty" chain pdb="my.pdb" output=$(pwd) # chain array is provided in a shell array chains=('A' 'B') # create several pdbs without individual chains #pymol -cQkd " pymol -c -d " # I need to add loop within PYMOL over the elements of external arrays for chains # mb for i in chains: cmd.load('${pdb}') cmd.alter('(chain $i)', 'chain=\"\"') cmd.set('pdb_use_ter_records', 1) cmd.set('retain_order', 1) # close the loop and save final output as 1 pdb cmd.save('${output}/output_withoutAB.pdb','all') " вт, 25 июн. 2019 г. в 16:14, James Starlight <jmsstarli...@gmail.com>: > > thanks so much Thomas, for this example! > > Actually, your python script does exactly what my bash script - > produces number of pdbs for each of the renamed chain. > I would like rather to produce at the end ONE pdb with all chains > renamed to empty chain... > I guess I need to save the result outside of the loop something like this > > ################ hop hey lalaley ##### > from pymol import cmd > pdb = "Ev_complex_model_final.pdb" > chains_array = ["A", "B"] # add more chains in case of more complex pdb > > # loop over chains to rename it > for chain in chains_array: > cmd.load(pdb) > cmd.alter('chain ' + chain, 'chain=""') > cmd.delete('*') > ###################################### > > # save output as pdb > # I need to add something in the name of output indicating how much > chains have been renamed > # like output_withoutAB.pdb > cmd.save('output_' + '.pdb') > > thanks in advance for help! > > вт, 25 июн. 2019 г. в 16:03, Thomas Holder <thomas.hol...@schrodinger.com>: > > > > > generally if I integrate a pymol silent script inside my > > > bash script, I do not need to use cmd.* syntax, right? > > > > Correct. The -d argument takes PyMOL commands, like a .pml script. Python > > syntax is optional. > > > > Python syntax (cmd.*) is necessary and most useful if you write a Python > > script (.py extension) and run that with PyMOL. You could write your > > multi-chains loop as a Python script: > > > > ################ example.py ########## > > from pymol import cmd > > pdb = "my.pdb" > > chains_arrays = ["A", "B", "C", "D", "E", "F", "G"] > > > > for chain in chains_array: > > cmd.load(pdb) > > cmd.alter('chain ' + chain, 'chain=""') > > cmd.save('output_' + chain + '.pdb') > > cmd.delete('*') > > ###################################### > > > > Then run it with PyMOL: > > pymol -ckqr example.py > > > > See also: > > https://pymolwiki.org/index.php/Launching_From_a_Script > > https://pymolwiki.org/index.php/Python_Integration > > > > Cheers, > > Thomas > > > > > On Jun 25, 2019, at 3:08 PM, James Starlight <jmsstarli...@gmail.com> > > > wrote: > > > > > > one extra programming question: > > > > > > imagine now in my pdb I have severals chain which I would like to > > > rename to blank chain. > > > > > > I can do it simply like this > > > # a case for 3 chains to be renamed > > > > > > #!/bin/bash > > > pdb="my.pdb" > > > output=$(pwd) > > > pymol -c -d " > > > cmd.load('${pdb}') > > > cmd.alter('(chain A)', 'chain=\"\"') > > > cmd.alter('(chain B)', 'chain=\"\"') > > > cmd.alter('(chain C)', 'chain=\"\"') > > > cmd.save('${output}/output.pdb','all') > > > " > > > > > > or for multi-chain protein I can alternatively create external loop, > > > thus running pymol 3 times iteratively (which is not good realization) > > > providin array info from external shell session > > > > > > # this example save 7 different pdbs renaming one chain in each of them > > > #!/bin/bash > > > pdb="my.pdb" > > > output=$(pwd) > > > chains_arrays=( A B C D E F G ) > > > > > > for i in "$chains_array[@]}"; do > > > pymol -c -d " > > > cmd.load('${pdb}') > > > cmd.alter('(chain $i)', 'chain=\"\"') > > > cmd.save('${output}/output_$i.pdb','all') > > > " > > > done > > > > > > would it be possible rather to make an array and loop inside the pymol > > > to rename all chains into the blank chain during one execution of > > > pymol? > > > > > > Thanks in advance! > > > > > > вт, 25 июн. 2019 г. в 14:50, James Starlight <jmsstarli...@gmail.com>: > > >> > > >> I have got the idea! > > >> thank you so much Thomas! > > >> One question: generally if I integrate a pymol silent script inside my > > >> bash script, I do not need to use cmd.* syntax, right? In what cases > > >> cmd.* sytax might be usefull? > > >> > > >> Thank you again! > > >> > > >> вт, 25 июн. 2019 г. в 12:05, Thomas Holder > > >> <thomas.hol...@schrodinger.com>: > > >>> > > >>> > > >>>> On Jun 25, 2019, at 11:48 AM, James Starlight <jmsstarli...@gmail.com> > > >>>> wrote: > > >>>> > > >>>> so what I need is just to update my pymol, keep using the same command? > > >>> > > >>> Yes > > >>> > > >>>> P.S.would the following integration of the code into bash script be > > >>>> usefull to remove chains in no gui mode? > > >>>> > > >>>> pymol -cQkd " > > >>>> from pymol import cmd > > >>>> fetch $pdb, type=pdb, tmp > > >>>> cmd.alter('(chain A)',chain='') > > >>>> " > > >>>> I am not sure whether I used here cmd.alter in correct way .. > > >>> > > >>> > > >>> With fetch, use "async=0" or use Python syntax. And keyword arguments > > >>> (type=) must be after positional arguments (tmp). > > >>> > > >>> It's easier if you don't use Python syntax for alter, otherwise you'll > > >>> need three levels of nested quotes, which gets ugly: > > >>> > > >>> pymol -cQkd " > > >>> fetch $pdb, tmp, type=pdb, async=0 > > >>> alter (chain A), chain='' > > >>> " > > >>> > > >>> With Python syntax (note the ugly escaping of quotes): > > >>> > > >>> pymol -cQkd " > > >>> cmd.fetch('$pdb', 'tmp', type='pdb') > > >>> cmd.alter('(chain A)', 'chain=\"\"') > > >>> " > > >>> > > >>> Cheers, > > >>> Thomas > > >>> > > >>> -- > > >>> Thomas Holder > > >>> PyMOL Principal Developer > > >>> Schrödinger, Inc. > > >>> > > > > -- > > Thomas Holder > > PyMOL Principal Developer > > Schrödinger, Inc. > > _______________________________________________ PyMOL-users mailing list Archives: http://www.mail-archive.com/pymol-users@lists.sourceforge.net Unsubscribe: https://sourceforge.net/projects/pymol/lists/pymol-users/unsubscribe