When running a command in SSH the outcomes and/or actions get displayed in the terminal. Certain commands spill over too many lines and get cut off, the solution to this is outputting the command to a file.
Saving this output can also be of use multiple times rather than needing to run the same command over and over again.
Redirecting and saving an output to a file is done with the
command > outputfile.txt
Example that saves the df -h output:
df -h > diskspace.txt
To append (place below existing content in file):
df -h >> diskspace.txt
If you want the output in the console aswell as an output file use
df - h 2> diskspace.txt
Save the output along with stderr (errors) use
&>> to append the output.