BlockShell – RedHat Linux

Visual Bash Script Builder

Create a new user with specified home directory and shell. Bash: useradd Create a new group with optional GID and system group flag. Bash: groupadd Modify user properties including username and home directory. Bash: usermod Lock or unlock a user account. Bash: passwd -l/-u Configure password aging policy. Bash: chage Add user to group with option to set as primary group. Bash: usermod Remove a user from a group. Bash: gpasswd List users with filtering options. Bash: getent passwd List groups with filtering options. Bash: getent group Format a partition with a specific filesystem type. Bash: mkfs Mount a filesystem and optionally add to /etc/fstab. Bash: mount Grow or shrink an existing filesystem. Bash: resize2fs/xfs_growfs Show block device information. Bash: lsblk Partition a disk with parted. Bash: parted Create a physical volume and volume group. Bash: pvcreate/vgcreate Extend a volume group with a new physical volume. Bash: vgextend Create a symbolic link. Bash: ln -s Analyze disk usage with specified depth. Bash: du Backup files using various methods. Bash: rsync/tar/dd Install a package with optional version. Bash: dnf install Remove a package. Bash: dnf remove Update or upgrade packages. Bash: dnf upgrade Search for a package in repositories. Bash: dnf search Add a repository via .repo or subscription-manager. Bash: dnf config-manager List installed or upgradable packages. Bash: dnf list Clean package metadata or old kernels. Bash: dnf clean Prevent or allow package upgrades. Bash: dnf versionlock Manage systemd services. Bash: systemctl Create a new systemd service unit. Bash: systemd unit file Schedule a cron job. Bash: crontab Check system resource usage. Bash: mpstat/free/df Monitor running processes. Bash: ps Send signal to a process. Bash: kill Configure a network interface using nmcli. Bash: nmcli Manage firewall rules with firewall-cmd. Bash: firewall-cmd Show all network interfaces. Bash: ip Ping a host to test connectivity. Bash: ping Change the SELinux runtime mode. Bash: setenforce Manage SELinux file context entries. Bash: semanage Restore SELinux file contexts. Bash: restorecon Check current SELinux status. Bash: getenforce Modify SSHD configuration. Bash: sshd_config Enable two-factor authentication. Bash: Google Authenticator/Duo Configure sudo permissions. Bash: visudo Run a basic or full audit. Bash: ausearch Retrieve system information. Bash: uname/hostnamectl