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Full Discussion: how to read contents of file?
Top Forums Shell Programming and Scripting how to read contents of file? Post 302567201 by nishrestha on Sunday 23rd of October 2011 04:21:54 AM
Old 10-23-2011
how to read contents of file?
I have made a script something like this. I want it to read the contents of either file or directory but 'cat' and 'ls' is not working. Can anyone help me? I am a newbie in scripting so dont know much about it. I also dont know how can i put my code separatly on this forum
Code:
#!/bin/bash

echo "Enter the filename:"
read FNAME

if [ -f $FNAME ]
then
	echo "It is a regular file."
	if [ -r $FNAME ]	
	then
		echo "The file is readable."
		echo "The contents of the file:" cat $FNAME
	else
		echo "Error: The file is not readable."
	fi

elif [ -d $FNAME ]
then
	echo "It is a directory"
	if [ -r $FNAME ]	
	then
		echo "The directory is readable."
		echo "The contents of the directory:" ls $FNAME
	else
		echo "Error: The file is not readable."
	fi


else
	echo "Error"
fi

Last edited by Scott; 10-23-2011 at 06:29 AM.. Reason: Added code tags
 

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LEARN ABOUT PHP

boolval

BOOLVAL(3)								 1								BOOLVAL(3)

boolval - Get the boolean value of a variable

SYNOPSIS

       boolean boolval (mixed  $var)

DESCRIPTION

	Returns the boolean value of $var.

PARAMETERS

	      o $var
		- The scalar value being converted to a boolean.

RETURN VALUES

	The boolean value of $var.

EXAMPLES

       Example #1

	      boolval(3) examples

	      <?php
	      echo '0:	      '.(boolval(0) ? 'true' : 'false')."
";
	      echo '42:       '.(boolval(42) ? 'true' : 'false')."
";
	      echo '0.0:      '.(boolval(0.0) ? 'true' : 'false')."
";
	      echo '4.2:      '.(boolval(4.2) ? 'true' : 'false')."
";
	      echo '"":       '.(boolval("") ? 'true' : 'false')."
";
	      echo '"string": '.(boolval("string") ? 'true' : 'false')."
";
	      echo '"0":      '.(boolval("0") ? 'true' : 'false')."
";
	      echo '"1":      '.(boolval("1") ? 'true' : 'false')."
";
	      echo '[1, 2]:   '.(boolval([1, 2]) ? 'true' : 'false')."
";
	      echo '[]:       '.(boolval([]) ? 'true' : 'false')."
";
	      echo 'stdClass: '.(boolval(new stdClass) ? 'true' : 'false')."
";
	      ?>

	      The above example will output:

	      0:	false
	      42:	true
	      0.0:	false
	      4.2:	true
	      "":	false
	      "string": true
	      "0":	false
	      "1":	true
	      [1, 2]:	true
	      []:	false
	      stdClass: true

SEE ALSO

       floatval(3), intval(3), strval(3), settype(3), is_bool(3), Type juggling.

PHP Documentation Group 														BOOLVAL(3)
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