Books
Benjamin Cane

Red Hat Enterprise Linux Troubleshooting Guide

  • Darkohas quoted9 days ago
    To list all RPM packages installed on a system, simply execute the rpm command with -q (query) and -a (all):
  • Darkohas quoted9 days ago
    Oftentimes, when working with big teams, it is common for more than one person to respond to an issue or ticket. By running the w command immediately after login, you will see what other users are doing, preventing you from overriding any troubleshooting or corrective steps the other person has taken.
  • Darkohas quoted9 days ago
    summarize it, the load average is the average number of processes in a wait state over a period of time. The three numbers in the output of w represent different times.
    The numbers are ordered from left to right as 1 minute, 5 minutes, and 15 minutes.
  • Darkohas quoted9 days ago
    contain multiple levels of piping:
  • Darkohas quoted9 days ago
    The –a and the --all flags are essentially the same option; it can simply be represented in both short and long form.
  • Darkohas quoted9 days ago
    –a and the --all flags are essentially the same option; it can simply be represented in both short and long form.
  • Darkohas quoted9 days ago
    /proc/filesystems file:
  • Darkohas quoted9 days ago
    This is a special filesystem that is maintained by the Linux kernel.
  • Darkohas quoted9 days ago
    is a special filesystem that is maintained by the Linux kernel
  • Darkohas quoted9 days ago
    extremely useful source of information is the proc filesystem.
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