Common Commands$$ touch $-$ creates a new file, or updates stats $($eg$.$ timestamp$)$ on an existing file$$ mkdir $-$ to create directories o mkdir $-$p $-$ to create a directory & any parent directories not already existing$$ rmdir $-$ to delete empty directories, eg$.$ rmdir directoryu$0002$list$$ mv existing$-$file new$-$file $-$ to rename or move files & directories$$ cp source$-$file destination$-$file $-$ to copy files $($careful$,$ overwrites destination with no warning$)$ o cp $-$r $-$ to copy directories including files and subdirectories