====== AWK - Display number of lines that contains specific string ======

<code bash>
awk '/the_string/{n++}; END {print n+0}'  file.txt
</code>


----

====== Example ======

Assuming a file, **test.txt**, exists with the following contents:

<file>
10   Peter     Terence   Roux        45
11   Virginia  Genevieve  Roux        45
12   Felix     Devon     Roux         5
13   David     Bruce     Stevenson   48
14   Bob       James     Smith       16
48   Adam      Winter    Ridley      23
</file>

Running

<code bash>
awk '/Roux/{n++}; END {print n+0}'  test.txt
</code>

returns:

<code bash>
3
</code>