I have a Debian based distribution & lately a problem has been encountered when trying to execute the gcc or man command's (And probably other commands I haven't found yet).When I type them in the shell nothing happens, as though I hit enter for a new line. I have tried to use an absolute path, but the same thing occurs.I  have also checked the executable & installation files and everything looks OK. I have restored the $PATH variable, I made and update && upgrade & a build-essential.I also deleted GCC package & reinstalledBut nothing has made a difference. Please can you tell me what's the problem ?Example:root@afr0ck:~# man ls root@afr0ck:~#root@afr0ck:~# gcc root@afr0ck:~#(I have even tried from another terminal & with a different user).
Some commands are no longer responding?
shell;kali linux;gcc;man