I have been trying to figure out how to rename files for the past few hours.
I have 2000 files that are like this:
file.1.pdb file.2.pdb file.3.pdb
I would like to rename these files to something like:
file.pdb.1 file.pdb.2 file.pdb.3
If you have
rename installed, you can use
rename -n 's/(\.\d+)\.pdb$/.pdb$1/' *.pdb # just watch what WOULD happen rename 's/(\.\d+)\.pdb$/.pdb$1/' *.pdb # actually rename the files
rename can be installed via
sudo apt install rename
rename -n 's/(\.\d+)(\.pdb)/$2$1/' *.pdb
*.pdbMatch all files that end with
.pdb. (Done by the shell)
(\.\d+)Match a literal dot, then one or more decimal digits. The parens create a match group.
$2$1Reverse the first and second match groups.
-nNo action (simulate). If the output looks good, run the command again without this flag.
You can use this script:
for i in `seq 1 2000`; do mv file.$i.pdb file.pdb.$i done
Or this copy-paste friendly command:
for i in `seq 1 2000`; do mv file.$i.pdb file.pdb.$i; done
For use above commands, put all 2000 files in one folder and then open terminal in that directory, then run above command in it.
Recently nautilus, the default file manager, received a batch rename dialog. It is not yet powerful enough to do what you want. But luckily there is thunar, an alternative file manager that can be installed. With thunars rename dialog you can do what you want using the GUI.
First install thunar:
sudo apt install thunar
Start thunar, navigate to the directory that has your files. Then select all of them. Press F2.
In the dialog that opens, again, select all files. Change mode to "Search & Replace" and to "Name & Suffix". Check "Regular Expression". Now use the following as search and replace patterns:
Finally click the rename button.
The advantage of this way is that you get a visual preview of what will happen before you actually do the renaming.
You can use
util-linux for this (the command is called
rename.ul in ubuntu):
rename.ul .pdb '' * rename.ul "file." "file.pdb." *
This first removes the
.pdb extension from the end and then re-inserts it into the middle.