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Top Forums Shell Programming and Scripting cat vs head vs readline get variable from txt file Post 302307538 by unclecameron on Wednesday 15th of April 2009 04:52:58 PM
Old 04-15-2009
cat vs head vs readline get variable from txt file

I have a file with a single filename in it, which I want to assign to a BASH variable, so I've been trying:

c=$(head -1 somefile)
echo $c

which outputs correctly, but them when I do

...
somecommand $c

it says it can't find the file, is that because it's grabbing the whole line, and how should I be doing it different, grep maybe?
 

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FGETC(3)								 1								  FGETC(3)

fgetc - Gets character from file pointer

SYNOPSIS
string fgetc (resource $handle) DESCRIPTION
Gets a character from the given file pointer. PARAMETERS
o $handle -The file pointer must be valid, and must point to a file successfully opened by fopen(3) or fsockopen(3) (and not yet closed by fclose(3)). RETURN VALUES
Returns a string containing a single character read from the file pointed to by $handle. Returns FALSE on EOF. Warning This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE. Please read the section on Booleans for more information. Use the === operator for testing the return value of this function. EXAMPLES
Example #1 A fgetc(3) example <?php $fp = fopen('somefile.txt', 'r'); if (!$fp) { echo 'Could not open file somefile.txt'; } while (false !== ($char = fgetc($fp))) { echo "$char "; } ?> NOTES
Note This function is binary-safe. SEE ALSO
fread(3), fopen(3), popen(3), fsockopen(3), fgets(3). PHP Documentation Group FGETC(3)
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