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Top Forums UNIX for Beginners Questions & Answers Renaming files by appending string from within file to filename Post 303030600 by Scrutinizer on Wednesday 13th of February 2019 12:22:25 AM
Old 02-13-2019
Hi, try something like this:
Code:
for file in filename*                                  # For every file in the current directory that starts with "filename"
do
  if [ -r "$file" ]; then                              # Check if the file is readable
    IFS='~' read x x x x x x x x string x < "$file"    # Read the 9th field of the first line of the file into variable string and close
    if [ "$string" ]; then                             # Check if the string is not empty
      mv -- "$file" "${file}_${string}"                # Rename the file 
    fi 
  fi
done

you can put an echo statement before the mv command first to see what it does



--
If you are using bash , you can also read the fields of the first line into an array:
Code:
IFS='~' read -a string <"$file"

and then use ${string[8]} for the ninth field.

Last edited by Scrutinizer; 02-13-2019 at 01:30 AM..
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PHP_STRIP_WHITESPACE(3) 						 1						   PHP_STRIP_WHITESPACE(3)

php_strip_whitespace - Return source with stripped comments and whitespace

SYNOPSIS
string php_strip_whitespace (string $filename) DESCRIPTION
Returns the PHP source code in $filename with PHP comments and whitespace removed. This may be useful for determining the amount of actual code in your scripts compared with the amount of comments. This is similar to using php -w from the commandline. PARAMETERS
o $filename - Path to the PHP file. RETURN VALUES
The stripped source code will be returned on success, or an empty string on failure. Note This function works as described as of PHP 5.0.1. Before this it would only return an empty string. For more information on this bug and its prior behavior, see bug report #29606. EXAMPLES
Example #1 php_strip_whitespace(3) example <?php // PHP comment here /* * Another PHP comment */ echo php_strip_whitespace(__FILE__); // Newlines are considered whitespace, and are removed too: do_nothing(); ?> The above example will output: <?php echo php_strip_whitespace(__FILE__); do_nothing(); ?> Notice the PHP comments are gone, as are the whitespace and newline after the first echo statement. PHP Documentation Group PHP_STRIP_WHITESPACE(3)
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