serenity/Userland/Utilities/clear.cpp

/*
 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#include <stdio.h>
#include <unistd.h>

int main(int, char**)
{
    if (pledge("stdio", nullptr) < 0) {
        perror("pledge");
        return 1;
    }
    printf("\033[3J\033[H\033[2J");
    fflush(stdout);
    return 0;
}
Meta: Add license header to source files As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header. 2020-01-18 09:38:21 +01:00			`/*`
			`* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>`
			`*`
Everything: Move to SPDX license identifiers in all files. SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt * 2021-04-22 01:24:48 -07:00			`* SPDX-License-Identifier: BSD-2-Clause`
Meta: Add license header to source files As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header. 2020-01-18 09:38:21 +01:00			`*/`

Make /bin/clear work again. After I made stdio buffered, we were dropping anything unflushed on exit. Since /bin/clear just prints out some escape sequences without a newline, the entire buffer was being discarded. Also add VirtualConsole::clear() that handles clearing of background VC's. 2018-11-10 00:56:10 +01:00			`#include <stdio.h>`
clear: Use pledge() 2020-02-18 10:58:04 +01:00			`#include <unistd.h>`
Add a /bin/clear that prints the clear terminal escape sequence. It doesn't work yet, but it will! 2018-10-27 17:39:08 +02:00
			`int main(int, char**)`
			`{`
clear: Use pledge() 2020-02-18 10:58:04 +01:00			`if (pledge("stdio", nullptr) < 0) {`
			`perror("pledge");`
			`return 1;`
			`}`
Add a /bin/clear that prints the clear terminal escape sequence. It doesn't work yet, but it will! 2018-10-27 17:39:08 +02:00			`printf("\033[3J\033[H\033[2J");`
Make /bin/clear work again. After I made stdio buffered, we were dropping anything unflushed on exit. Since /bin/clear just prints out some escape sequences without a newline, the entire buffer was being discarded. Also add VirtualConsole::clear() that handles clearing of background VC's. 2018-11-10 00:56:10 +01:00			`fflush(stdout);`
Add a /bin/clear that prints the clear terminal escape sequence. It doesn't work yet, but it will! 2018-10-27 17:39:08 +02:00			`return 0;`
			`}`