Perl | shift() Function

Perl | rename() Function

Last Updated : 25 Jun, 2019

rename() function in Perl renames the old name of a file to a new name as given by the user.

Syntax: rename(old_file_path, new_file_path) Parameters: old_file_path: path of the old file along with its name new_file_path: path of the new file along with its name Returns 0 on failure and 1 on success

Example:

Perl

#!/usr/bin/perl -w

# Calling the rename() function 
# with required parameters
rename("D:/GeeksforGeeks/GFG File.txt",
       "D:/GeeksforGeeks/GFG File 2.txt") ||
       die ( "Error in renaming" );

Output: Original File:

Running the Command:

Updated File:

Steps to Run the above code: Step1: Create a file anywhere in your System and copy the File Path. Step 2: Provide the path of your File in the code above and save it as .pl extension. Step 3: Run the above code in Command line as perl Filename.pl. Step 4: Name of the File is now changed with the new name provided.

Perl | shift() Function

C

Code_Mech

Improve

Article Tags :

Similar Reads

Perl | reverse() Function

reverse() function in Perl when used in a list context, changes the order of the elements in the List and returns the List in reverse order. While in a scalar context, returns a concatenated string of the values of the List, with each character of the string in the opposite order. Syntax: reverse Li

Perl | uc() Function

uc() function in Perl returns the string passed to it after converting it into uppercase. It is similar to ucfirst() function which returns only first character in uppercase. Note: The characters which are already in UpperCase are not modified. Syntax: uc String Returns: string in uppercase. Example

Perl | sprintf() Function

sprintf() function in Perl uses Format provided by the user to return the formatted string with the use of the values in the list. This function is identical to printf but it returns the formatted string instead of printing it. Syntax: sprintf Format, List Returns: a formatted scalar string Example

Perl | substr() function

substr() in Perl returns a substring out of the string passed to the function starting from a given index up to the length specified. This function by default returns the remaining part of the string starting from the given index if the length is not specified. A replacement string can also be passe

Perl | shift() Function

shift() function in Perl returns the first value in an array, removing it and shifting the elements of the array list to the left by one. Shift operation removes the value like pop but is taken from the start of the array instead of the end as in pop. This function returns undef if the array is empt

Perl | split() Function

split() is a string function in Perl which is used to split or you can say to cut a string into smaller sections or pieces. There are different criteria to split a string, like on a single character, a regular expression(pattern), a group of characters or on undefined value etc.. The best thing abou

Perl | Useful String functions

A string in Perl is a scalar variable and start with a ($) sign and it can contain alphabets, numbers, special characters. The string can consist of a single word, a group of words or a multi-line paragraph. The String is defined by the user within a single quote (â€˜) or double quote (â€œ). Perl provid

Perl | chop() Function

The chop() function in Perl is used to remove the last character from the input string. Syntax: chop(String) Parameters: String : It is the input string whose last characters are removed. Returns: the last removed character. Example 1: Perl #!/usr/bin/perl # Initialising a string $string = "GfG

Perl | join() Function

join() function in Perl combines the elements of LIST into a single string using the value of VAR to separate each element. It is effectively the opposite of split. Note that VAR is only placed between pairs of elements in the LIST; it will not be placed either before the first element or after the

Perl | List Functions

A list in Perl is a collection of scalar values. We can access the elements of a list using indexes. Index starts with 0 (0th index refers to the first element of the list). We use parenthesis and comma operators to construct a list. In Perl, scalar variables start with a $ symbol whereas list varia