8/29/2023 0 Comments Mac install command line tools![]() ![]() ![]() To list all processes with a niceness (NI) column: ps -lĮxpand the terminal window width to avoid line wrapping. So that we can kill it for fun, create a background process (by specifying &) The response includes: /usr/local/Cellar/htop/2.2.0_1: 11 files, 188KB To cancel the display, press control+C keys (which works with any process you want to kill).Īlternately, install the htop utility using Homebrew: brew install htop To list the top hungry processes consuming the CPU: top PROTIP: The memory page size is obtained using getconf PAGESIZE, which is “4096”. On Linux systems, the “vmstat” command is similar but not identical. The number of most interest is pageout, the “3459” in this sample response: To obtain a new reading every 5 seconds, the command on macOS is: vm_stat 5 To identify number of CPU cores sysctl hw.physicalcpu In a system with four CPU cores, a load average of 3.73 would indicate that there were, on average, 3.73 processes ready to run, and each one could be scheduled into a CPU. These count the number of processes either using or waiting for CPU (the ready queue or run queue) increments the load number by 1. “load averages” numbers are calculations of the average system load over three periods of times: the last one-, five-, and fifteen-minute periods. The response also shows whether CPU utilization is increasing recently: 6:35 up 9 days, 11:56, 7 users, load averages: 2.09 2.24 2.06 spx file extension so that it opens automatically using the GUI: system_profiler -detailLevel full -xml > ~/Desktop/system_report_mini.spx CPU Utilization uptime Instead of “basic”, there is also “mini” and “full” scope of output. PROTIP: Save these files to provide to Support: system_profiler -detailLevel basic > ~/Desktop/system_report.txt There is a lot of information, so it takes time to generate output. “SPHardwareDataType” is one of several DataTypes or items of information listed by: system_profiler -listDataTypes PROTIP: Use the command above to obtain your serial number for Apple Support. ![]() Internally, the display can be output as text using this command: system_profiler SPHardwareDataType PROTIP: Add this among your keyboard shortcuts in aliases.sh. Get CPU thermal data on MacOS sysctl _thermal_level Instead of examining various Linux config files (/etc/*elease, /proc/meminfo for memory, /proc/cpuinfo for number of cores), macOS has a “system_profiler” utility presenting many data types. But you can also open it without the Option key by selecting “About This Mac” then pressing “System Report”. Mouse to the upper-left corner of the screen and hold down Option while you click the Apple icon. MacOS provides a GUI to display detailed information about system Hardware, Software, and Networks. In folder “/Applications/Utilities” are several apps which include “System Information.app”. Open a Finder window to view files in both folders. ![]() The “back-slash” character needs to precede every space character in the name because a space usually separates parts of commands.īTW There is also a folder at “~/Applications” for user-level apps. Mouse to the upper-left corner of the screen and click the Apple icon that appears to choose “System Preferences…”.Īlternately, you can also open the dialog with this command: open /Applications/System\ Preferences.appīTW, instead of typing out the whole line above, you can simply type “prefs” if you use a text editor to add this line in the ~/.bash_profile file: alias prefs='open /Applications/System\ Preferences.app'Īpple stores its apps in folder “/Applications”. MacOS provides a GUI to manage system configuration settings. Its packages include zshell and tig (Git spelled backwards), the Text-Mode Interface for Git. There is also which is a collection of “the hassle-free way to get Unix programs on OS X”. Use it to search within Python libraries: apt-cache search python3 | wc -l On Debian and its derivatives is the apt-cache utility that goes with the apt-get package manager (like Homebrew and MacPorts). MacOS (Mac OS X) comes with the BSD (Berkeley Standard Distribution) version of command line tools which are slightly different from the Linux version (in Red Hat, Debian, Ubuntu, CoreOS, etc.) even though both are compliant with POSIX standards. The command that is common to all Linux/BSD variants is the one that returns the operating system name: uname Linux utilities – the Swiss Army Knife for almost every need. This article compares and contrasts macOS utilites vs. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |