First commit.

Makefile

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+name = lightfetch
+files = main.c
+install_dir = /usr/bin/
+debug:
+	@echo Building debug...
+	gcc -Wall -Wextra -o $(name) $(files)
+	@echo Build completed! Running...
+	@echo
+	./$(name)
+	@echo
+	@exit
+
+clean:
+	@echo Building debug...
+	gcc -Wall -Wextra -o $(name) $(files)
+	@echo Build completed! Running...
+	@echo
+	./$(name)
+	@echo
+	rm -f $(name)
+	@echo Removed output file.
+	@exit
+
+install:
+	@echo Building release...
+	sudo gcc -o $(install_dir)$(name) $(files)
+	@echo Building and installation completed!
+	@exit
+
+uninstall:
+	@echo Uninstalling lightfetch...
+	sudo rm -f $(install_dir)$(name)
+	rm ../lightfetch
+	@echo Uninstall completed!
+	@exit

README.md

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+# lightfetch
+
+A light system info tool for Linux.
+
+## Currently supported distros
+
+Alpine Linux, ArchBang, Arch Linux, ArcoLinux Artix Linux, CentOS, Debian, Devuan, elementary OS, Fedora, Gentoo Linux, gNewSense, GNU Guix, Hyperbola GNU/Linux-libre, instantOS, KISS Linux, Linux Lite, Linux Mint, Mageia, Manjaro, MX Linux, NixOS, openSUSE, Parabola GNU/Linux-libre, Pop!_OS, PureOS, Raspbian, Slackware, Ubuntu (and its flavours), Void Linux, and Voyager Live.
+
+## Building and installation
+
+To install you can type this commands in the terminal:
+
+```shell
+git clone https://github.com/TheDarkBug/lightfetch.git
+cd lightfetch
+make install
+```
+
+To uninstall:
+
+```shell
+cd lightfetch
+sudo make uninstall
+cd ..
+rm -rf lightfetch
+```
+
+## License
+
+This program is provided under the [GPL-3.0 License](https://github.com/TheDarkBug/LICENSE).
+
+## Credits
+
+[ufetch](https://gitlab.com/jschx/ufetch/): ASCII Distro logos (with some edits by me)

main.c

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+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/utsname.h>
+
+void pkgman();
+
+int main() {
+	// init variables and other useful things
+	char user[32], host[253];
+	struct utsname sys;
+
+	// get user and host names
+	snprintf(user, 32, "%s", getenv("USER"));
+	gethostname(host, 253);
+
+	if (uname(&sys) == -1) {
+		printf("Ah sh-t, an error\n");
+	}
+	char version_name[64];
+	FILE *fosr  = fopen("/etc/os-release", "r");
+	fscanf(fosr,"%[^\n]", version_name);
+	fclose(fosr);
+	memmove(&version_name[0], &version_name[5], 64);
+	printf("%s@%s %s %s\n", user, host, version_name, sys.machine); //debug
+    pkgman();
+	return 0;
+}
+
+void pkgman() {
+	int apt, dnf, emerge, flatpak, nix, pacman, rpm, snap, xbps, yay;
+
+    FILE *fapt = popen("dpkg-query -f '${binary:Package}\n' -W 2>/dev/null | wc -l", "r");
+    FILE *fdnf = popen("dnf list installed 2>/dev/null | wc -l", "r");
+    FILE *femerge = popen("qlist -I 2>/dev/null | wc -l", "r");
+    FILE *fflatpak = popen("flatpak list 2>/dev/null | wc -l", "r");
+    FILE *fnix = popen("nix-store -q --requisites /run/current-system/sw 2>/dev/null | wc -l", "r");
+    FILE *fpacman = popen("pacman -Q 2>/dev/null | wc -l", "r");
+    FILE *frpm = popen("rpm -qa --last 2>/dev/null | wc -l", "r");
+    FILE *fsnap = popen("snap list 2>/dev/null | wc -l", "r");
+    FILE *fxbps = popen("xbps-query -l 2>/dev/null | wc -l", "r");
+    FILE *fyay = popen("yay -Q 2>/dev/null | wc -l", "r");
+    fscanf(fapt, "%d", &apt);
+    fscanf(fdnf, "%d", &dnf);
+    fscanf(femerge, "%d", &emerge);
+    fscanf(fflatpak, "%d", &flatpak);
+    fscanf(fnix, "%d", &nix);
+    fscanf(fpacman, "%d", &pacman);
+    fscanf(frpm, "%d", &rpm);
+    fscanf(fsnap, "%d", &snap);
+    fscanf(fxbps, "%d", &xbps);
+    fscanf(fyay, "%d", &yay);
+    fclose(fapt);
+    fclose(fdnf);
+    fclose(femerge);
+    fclose(fflatpak);
+    fclose(fnix);
+    fclose(fpacman);
+    fclose(frpm);
+    fclose(fsnap);
+    fclose(fxbps);
+    fclose(fyay);
+
+    int comma = 0;
+
+    if (apt > 0) {
+        if (comma == 1) printf(", ");
+        printf("apt: %d", apt);
+        comma = 1;
+    }
+    if (dnf > 0) {
+        if(comma == 1) printf(", ");
+        printf("dnf: %d", dnf);
+        comma = 1;
+    }
+    if (emerge > 0) {
+        if (comma == 1) printf(", ");
+        printf("emerge: %d", emerge);
+        comma = 1;
+    }
+    if (flatpak > 0) {
+        if (comma == 1) printf(", ");
+        printf("flatpak: %d", flatpak);
+        comma = 1;
+    }
+    if (nix > 0) {
+        if (comma == 1) printf(", ");
+        printf("nix: %d", nix);
+        comma = 1;
+    }
+    if (pacman > 0) {
+        if (comma == 1) printf(", ");
+        printf("pacman: %d", pacman);
+        comma = 1;
+    }
+    if (rpm > 0) {
+        if (comma == 1) printf(", ");
+        printf("rpm: %d", rpm);
+        comma = 1;
+    }
+    if (snap > 0) {
+        if (comma == 1) printf(", ");
+        printf("snap: %d", snap);
+        comma = 1;
+    }
+    if (xbps > 0) {
+        if (comma == 1) printf(", ");
+        printf("xbps: %d", xbps);
+        comma = 1;
+    }
+    if (yay > 0) {
+        if (comma == 1) printf(", ");
+        printf("yay: %d", yay);
+        comma = 1;
+    }
+    printf("\n");
+}