![]() # run at 22:00 on weekdays(1-5), annoy Joe. # run at 14:15 on the first of every month - output mailed to paul are OR'ed)ĥ 0 * * * $HOME/bin/daily.job > $HOME/tmp/out 2>&1 # Min Hour DayOfMonth Month DayOfWeek command (Day. # mail any output to paul, no matter whose crontab this is # use /bin/sh to run commands, no matter what /etc/passwd says foo by creating a crontab(5) file as " /var/spool/cron/crontabs/foo" with " crontab -e" command. You can schedule to run processes as a normal user, e.g. The desktop environment sets $XDG_DATA_HOME and $XDG_DATA_DIR environment variables. The *.desktop files are scanned as follows. MimeType=text/html text/xml application/xhtml_xml x-scheme-handler/http x-scheme-handler/https (see the Desktop Entry Specification) as follows: See "/usr/share/doc/xdg-utils/README".įor example, the sktop file defines attributes for the "Chromium Web Browser" such as "Name" for the program name, "Exec" for the program execution path and arguments, "Icon" for the icon used, etc. Modern desktop environments which are compliant to standard use these data to generate their menu using the xdg-utils package. Each package which is compliant to 's xdg menu system installs its menu data provided by "*.desktop" under "/usr/share/applications/". See Section 1.5.3, “The " $PATH" variable”.įor the graphical user interface (GUI) compliant to the standards, the *.desktop files in the /usr/share/applications/ directory provide necessary attributes for the GUI menu display of each program. Run processes according to a schedule in background from cron(8) daemonĬron-like command scheduler for systems that don't run 24 hours a dayĪt(1) or batch(1): run a job at a specified time or below certain load levelįor the command-line interface (CLI), the first program with the matching name found in the directories specified in the $PATH environment variable is executed. Powertop(1): information about system power use Xtrace(1): trace communication between X11 client and server ![]() Strace(1): trace system calls and signals Lsof(8): list files opened by a running process using " -p" option Interactive System Activity Grapher for sysstat Sar(1), iostat(1), mpstat(1), …: system performance tools for Linux Time(1): run a program to report system resource usages with respect to time " /proc" filesystem utilities: killall(1), fuser(1), peekfd(1), pstree(1) Renice(1): modify the scheduling priority of a running process Nice(1): run a program with modified scheduling priority Here, I describe basic tips to configure and manage systems, mostly from the console. Mounting the virtual disk image file 9.11.4. Virtualization and emulation tools 9.11.2. Compiling the kernel source: Debian Kernel Team recommendation 9.10.5. Compiling the kernel and related modules 9.10.4. Mounting encrypted disk with dm-crypt/LUKS 9.10. Removable disk encryption with dm-crypt/LUKS 9.9.2. Undeleting deleted but still open files 9.8.11. Erasing unused area of an hard disk 9.8.10. Splitting a large file into small files 9.8.6. Data file recovery and forensic analysis 9.8.5. Manipulating files without mounting disk 9.8.3. Writing directly to the CD/DVD-R/RW 9.7.8. Expansion of usable storage space using symlink 9.7. Expansion of usable storage space by overlay-mounting another directory 9.6.17. Expansion of usable storage space by bind-mounting another directory 9.6.16. Expansion of usable storage space by mounting another partition 9.6.15. Expansion of usable storage space via LVM 9.6.14. ![]() Specify temporary storage directory via $TMPDIR 9.6.13. Using SMART to predict hard disk failure 9.6.12. Optimization of solid state drive 9.6.11. Optimization of filesystem via superblock 9.6.9. Optimization of filesystem by mount options 9.6.8. Filesystem creation and integrity check 9.6.7. Customizing program to be started 9.4.12. Repeating a command looping over files 9.4.10. Repeating a command with a constant interval 9.4.9. Identification of processes using files or sockets 9.4.8. Monitoring, controlling, and starting program activities 9.4.1. Recording changes in configuration files 9.4. Recording the graphic image of an X application 9.3.9. Recording the editor activities for complex repeats 9.3.8. Customized display of time and date 9.3.5. Customizing vim with external packages 9.3. Customizing vim with internal features 9.2.2. Recording the shell activities cleanly 9.1.2.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |