July 2023 - ILUG-D - lists.fsci.in

1D1C - acpi
by Dhanasekar 12 Jul '23

12 Jul '23

acpi - Shows battery status and other ACPI information from the /proc or the /sys filesystem To view battery info $ acpi To view the ac adapter information $ acpi -a To view cooling device information $ acpi -c To view all information $ acpi -V To display the non-operational devices $ acpi -s To show additional details if available $ acpi -i To view help options $ acpi -h regards, T.Dhanasekar

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1D1C - upower
by Dhanasekar 11 Jul '23

11 Jul '23

upower - it is a system utility that provides power and battery information and statistics To view power and battery information $ upower --dump To watch for and print power status changes $ upower --monitor $ upower --monitor-detail To list all power devices $ upower --enumerate To print version of daemon and client $ upower -v To get the wakeup data $ upower -w regards, T.Dhanasekar

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1D1C - sync
by Dhanasekar 10 Jul '23

10 Jul '23

sync - it allows users to synchronize cache data to permanent system memory to save important files and prevent data loss. To synchronize all cached data for the current user to the permanent memory $ sync To sync all mounted file systems $ sudo sync To sync Specific files $ sync ./file1 ./file2 To sync file1 from home and file3 from /opt $ sync ./file1 /opt/file3 To sync file data only $ sync -d ./file1 ./file2 ./file3 To sync a directory $ sync ./test_dir To sync a file system linked to a specific file $ sync -f test_file1 $ To view help options $ sync --help regards, T.Dhanasekar

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1D1C - xfs_info
by Dhanasekar 09 Jul '23

09 Jul '23

xfs_info command is used to view the specific information of the xfs file system To view the real-time range size of the device $ xfs_info -e device_name To view the size of the device $ xfs_info -l device_name To view geometry information about an existing XFS filesystem $ sudo xfs_info /data_backup/ regards, T.Dhanasekar

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1D1C - xmllint
by Dhanasekar 08 Jul '23

08 Jul '23

xmllint - command line XML tool , useful for detecting errors both in XML code and in the XML parser itself To verify if an XML document is corrupted or not $ xmllint sample.xml To suppress the xmllint from printing the content of XML file to standard output $ xmllint --noout sample.xml To format the unformatted xml file $ xmllint --format unformatted.xml To reformat XML document with an four-space indent $ export XMLLINT_INDENT=" " # (four space) To remove the indentation spaces and newlines using xmllint $ xmllint --noblanks sample.xml To remove Document Type Definition from output from xml $ xmllint --dropdtd sample.xml To get a time profile $ xmllint --noout --timing sample.xml regards, T.Dhanasekar

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1D1C - valgrind
by Dhanasekar 07 Jul '23

07 Jul '23

valgrind - it is a flexible program for debugging and profiling programs To debug and profiling a sample program $ valgrind ./sample_program To detect memory leaks $ valgrind --leak-check=full --show-leak-kinds=all ./sample_program To get more detailed memory-leak output $ valgrind --leak-check=full ./sample_program regards, T.Dhanasekar

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1D1C - ltrace
by Dhanasekar 05 Jul '23

05 Jul '23

ltrace - A library call tracer. it is used to intercept and record dynamic calls to shared libraries on the system To trace a program in creating somefiles using touch command $ ltrace touch a.txt b.txt c.txt To trace program by its process id $ ltrace -p <pid_of_process> regards, T.Dhanasekar

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1D1C - flatpak
by Dhanasekar 04 Jul '23

04 Jul '23

flatpak - is a tool for managing applications and the runtimes they use To check flatpak version $ flatpak --version To List all the Packages $ flatpak list To search a package $ flatpak search <package_name> To Install a package $ flatpak install <package_name> To uninstall a package $ flatpak uninstall <package_name> To check flatpak history $ flatpak history To update package $ flatpak update <package_name> To check all the Information $ flatpak info <package_name> To check flatpak process $ flatpak ps To kill flatpak process $ flatpak kill <process_name> To repair flatpak installation $ flatpak repair To print help options $ flatpak --help regards, T.Dhanasekar

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1D1C - pacman
by Dhanasekar 03 Jul '23

03 Jul '23

pacman - is the software package manager for Arch Linux To install the package $ sudo pacman -S package_name To install multiple packages $ sudo pacman -S package1 package2 package3 To upgrade the system $ sudo pacman -Suy To update the package databases $ sudo pacman -Syy To search for the package $ sudo pacman -Ss <package_name> To show package information $ sudo pacman -Si <package_name> To search for installed packages $ sudo pacman -Qs <package_name> To download the package $ sudo pacman -Sw <package_name> To install the downloaded package $ sudo pacman -U <package_name_file> To install the package from a url $ sudo pacman -U <package_url> To uninstall the package $ sudo pacman -Rs <package_name> To list all installed packages $ sudo pacman -Q To view details of an installed package $ sudo pacman -Qi <package_name> To clean the package cache $ sudo pacman -Sc regards, T.Dhanasekar

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1D1C - zypper
by Dhanasekar 02 Jul '23

02 Jul '23

Zypper - is a command line tool for package management in OpenSUSE and SUSE Enterprise Linux platforms To Install a Package $ sudo zypper install <package Name> To update a package $ sudo zypper update httpd To upgrade all the packages $ sudo zypper update To view all the available updates $ sudo zypper list-updates For a full distribution upgrade $ sudo zypper dup To delete a package $ sudo zypper remove <package_name> To search for a specific package $ sudo zypper search <package_name> To view details about a package $ sudo zypper info htop To install patches $ sudo zypper patches To lock a specific package it prevents not remove, upgrade the package $ sudo zypper al <package_name> To list the locked packages $ sudo zypper ll To remove lock from a package $ sudo zypper rl <package_name> To view repositories $ sudo zypper lr To view complete URI for the repo $ sudo zypper lr --uri regards, T.Dhanasekar

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ILUG-D July 2023