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This is Useless Use of Cat (http://partmaps.org/era/unix/award.html).

count=`cat some_file|wc -l`
echo $count

As Skrynesaver said it is spacing:
count=$(wc -l < file) :D

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There are several methods of determining the number of lines in a file, another one for example:sed -n $= file
But wc -l is by far...

awk 'END { print NR }' file

count=$(wc - l < file)

Spacing

#!/bin/bash
count=$(wc -l "some file.txt" | cut -d\ -f1)
echo $count

The UNIX and Linux Forums have a number of active members that have published books or papers related to shell programming and scripting. You can check out their publications here:

Link Removed
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And nowhere is this more true than Borland Turbo C++, which has several kinds of pointers, of differing sizes, due to 16-bit segment weirdness.

Arrgh! No! Not that! ;)

Seriously, in order to be perfectly clear: while a pointer may be an integer-type value, a pointer is NOT an int, nor a long, nor an unsigned int or unsigned long. A...

Adding -Wall to gcc's commandline can cause it to warn you about a lot of them too.

Hi.

Sometimes lint-like tools can catch these errors. For example, on Debian GNU/Linux, there is a utility splint. The output from running it on your code is:
% splint t1.c
Splint 3.1.2 --- 23...

char *buf; This doesn't create memory for you. All a pointer is is an integer describing where memory is. And just like an uninitialized integer, an uninitialized pointer can be anything at all. ...