I noticed that in the shell konsole the current working directory and all parent directories are printed at all times. Is there any way to make it so the command prompt prints only the current working directory and not all its parents in Slack?

Change your PS1 where it has \W to a lowercase \w and it should fix the problem.

That would be in the /etc/profile file right? The related section looks like this:

# Set a default shell prompt:
#PS1='`hostname`:`pwd`# '
if [ "$SHELL" = "/bin/pdksh" ]; then
PS1='! $ '
elif [ "$SHELL" = "/bin/ksh" ]; then
PS1='! ${PWD/#$HOME/~}$ '
elif [ "$SHELL" = "/bin/zsh" ]; then
PS1='%n@%m:%~%# '
elif [ "$SHELL" = "/bin/ash" ]; then
PS1='$ '
else
PS1='\u@\h:\w\$ '
fi
PS2='> '
export PATH DISPLAY LESS TERM PS1 PS2


It looks like there already is a \w (lowercase) in there. Maybe there is a script parameter that needs to be executed differently?

I figured it out. Actually you had it reversed. It should be \W not \w to print only the current working directory without its parents.