How can I remove all spaces in a .txt file ?

fid = fopen('test_hex.txt','r');
tline = fgetl(fid);
while ischar(tline)
  disp(tline);
  tline = fgetl(fid);
end
fclose(fid);

Here is my code to read txt file. I want to delete all spaces. How can I do it ? I have attached txt file

[Brendan Hamm]

Look at regexprep , literally translates to regular expression replacement.

Inside your loop you can just write:

formatLine = regexprep(tline,' ','');

which will replace all spaces with the empty string. Now just decide how you want to store the data as this would overwrite the previous iteration everytime (maybe use a counter to store this outputto the kth row of a char array)

Answer 1

[dpb]

If you really mean all as in "all"...

>> type burak.txt  % made a file with your line twice...
08 0C F0 6D 86 EA 44 2D
08 0C F0 6D 86 EA 44 2D

>> fid=fopen('burak.txt','rt');  % open as text file to handle EOL
>> c=fread(fid,inf,'*char').';     % read into character array, transpose
c =
08 0C F0 6D 86 EA 44 2D
08 0C F0 6D 86 EA 44 2D
>> c(c==' ')='';                     % remove blanks
c =
080CF06D86EA442D
080CF06D86EA442D

>> fid=fclose(fid);

Alternatively, use could still use strrep but for this purpose it's simpler to do the direct substitution.

c=strrep(c,' ','');

[Burak KTK]

Thank you for your answer. Actually all means: i want to delete spaces in each line (line by line). For example: input: 08 0C F0 6D 86 EA 44 2D

output:080CF06D86EA442D

[dpb]

So what's the difference in line-by-line and the whole file?

BTW, if on Windows need to tell fopen it's a text file and I neglected to transpose from native column to row-major order for display purposes....see updated Answer.