/dev/null
To begin,
/dev/null
is a special file called the null device in Unix systems. Colloquially it is also called the bit-bucket or the blackhole because it immediately discards anything written to it and only returns an end-of-file EOF
when read.Search for SUID binaries and discard error messages:
find / -perm -u=s -type f 2>/dev/null
Supress any output (both stdout and stderr) from the command:
<command> > /dev/null 2>&1

Step by step breakdown of /dev/null
Medium
Step by step breakdown of /dev/null
Last modified 1yr ago