Do the common programs (for example: "ls", "cat") in Linux and BSD come from the same source code?
123768
Were all Unix commands re-written in Linux?
34314
Why are there 2 packages for some applications (e.g. Chromium) in Ubuntu Software?
42263
Are {/bin, /lib, /sbin} symlinks into /usr in Ubuntu?
31130
Reproduce the Unix cat command in Python
122414
is piped ls the same as ls -1?
79345
Why does "cat {foo}" not output foo, but "cat {foo,bar}" does?
29997
l, ls & la -- what are the differences, and are there more of these commands?
75421
Difference between 'dir' and 'ls' terminal commands?
22594
How do I compare binary files in Linux?
10354
Why *not* parse `ls` (and what to do instead)?
71474
Should I install programs from a source tarball (`.tar.gz`), from the Ubuntu Software Centre, or from elsewhere?
156583
Why does 'ls > ls.out' cause 'ls.out' to be included in list of names?
44539
What is /etc/mtab in Linux?
52838
How does Linux tell threads apart from child processes?
105635
Why is Linux's filesystem designed as a single directory tree?
78660
Whats the difference between Unix, Linux and Ubuntu?
58477
/usr/bin vs /usr/local/bin on Linux