Shellv1 #1
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Shellv1 #1
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* _atoi - convert a string to an integer. * * @s: string to be converted. * * Return: the converted number. * _strcat - Concatenates two strings. * * @DesT: destination var. * @src: source buffer. * * Return: Pointer to the resulting string dest. * _strcmp - compares two strings. * * @s1: string no 1. * @S2: string no 2. * * Return: positive num, zero and negative num. * _strdup - returns a pointer to anewly allocated space in memory, * which contains a copy of the string given as parameter. * * @string: string to be copied. * * Return: pointer to the newly allocated space in memory, or NULL * in some conditions. * _strlen - return the length of a string. * * @s: string. * * Return: length of the string. * _strncmp - compares n characters of two strings . * * @s1: string no 1. * @S2: string no 2. * @n: number of characters to be compared. * * Return: positive num, zero and negative num.
* _realloc - reallocates a memory block using malloc and free. * * @ptr: old memory location. * @old_size: old size of the buffer. * @new_size: new size of the allocated memory. * * Return: pointer to the new allocated memory. * free_commands - frees a Command type single list. * * @list: Command type single list; * * Return: Nothing. * utils.c functions * SIGINT_handler - handles CTRL + C signal. * add_node_end - adds a new node at the end of a Commands list. * free_2D - frees a 2 dimensional array previously created. * absolutePath - checks if the command is absolute path to the binary or not. * _getenv - gets the environment value for an env variable.
*built_in_cmd.c function * built_in - checks whether the command is build in command or not. * * @cmd: command. * * Return: pointer to function. *built_in_exit.c function * ___exit - exits the shell. * * @command: the command that the user type. * @envp: array of all environment variables. * * Return: (0) always success, (EXIT_CODE) otherwise. *built_in_env.c function * _env - prints the environment variables. * * @command: the command that the user type. * @envp: array of all environment variables. * * Return: (0) always success, (1) otherwise.
*main.c function * main - main shell handler. * * @ARGC: number of arguments. * @argv: arguments' value. * @envp: environment variables. * * Return: (0) always success, (EXIT_CODE) otherwise. *parser.c functions * parser - make a Commands single list of commands and its logical operators. * safeBuffer - delete the last character '\n'. * tokenizedArray - make each command and arg in the buffer into array. *execMe.c functions * execMe - executes commands. * commandExists - checks if the command exists in the PATH or not.
*built_in_exit.c * provide the correct argument description. *built_in_env.c * edit the code style.
If the user typed the logical operator as the first command, it will be handled as logical operator, not as a command; So, if the logical operator is the first command, then it should be treated as a command not a logical operator.
*exec_utils.c functions * commandExists - checks if the command exists in the PATH or not. * doExec - checks if the command should be executed or not. * execAbsolutePath - executes a command which the user has provided its path. * execCommandPath - executes a command from PATH. *logicalOperators.c functions * orOperator - handles || logical operator. * * @CMDexec: Commands single list to executes its commands. * @lastsignal: the signal by syscall. * @prevOp: previous logical operator. * @LogicalOp: current logical operator. * * Return: (GOTO) macro, or (0). * andOperator - handles && logical operator. * * @CMDexec: Commands single list to executes its commands. * @lastsignal: the signal by syscall. * @prevOp: previous logical operator. * @LogicalOp: current logical operator. * * Return: (GOTO) macro, or (0). * operatorsChain - handles chain of logical operator. * * @CMDexec: Commands single list to executes its commands. * @lastsignal: the signal by syscall. * @prevOp: previous logical operator. * @LogicalOp: current logical operator. * * Return: (GOTO) macro, or (0).
…into shellv1 Update README.md file.
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Merge version 1 of the shell into the main branch.