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linux:installation [2017/02/13 10:02] mstraub [Init Daemons] |
linux:installation [2018/12/07 11:13] mstraub [Mounting] |
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== hwclock == | == hwclock == | ||
- | The hardware clock can be read and set (by root only) with the ''hwclock'' command. The parameters ''--utc'' and ''--localtime'' tell if the hardware clock is / should be set to UTC or local time. | + | The hardware clock can be read and set (by root only) with the ''hwclock'' command. The parameters ''%%--utc%%'' and ''%%--localtime%%'' tell if the hardware clock is / should be set to UTC or local time. |
**Note, however, that hwclock always prints and expects (when setting) date in local time.** | **Note, however, that hwclock always prints and expects (when setting) date in local time.** | ||
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===== Mounting ===== | ===== Mounting ===== | ||
- | The ''mount'' command and various files can be used to inquire the currently mounted devices and swap spaces. | + | The ''findmnt'' command and various files can be used to inquire the currently mounted devices and swap spaces. |
<code bash> | <code bash> | ||
- | mount # show currently mounted devices | + | lsblk # list block devices (i.e. no network or virtual devices) |
+ | findmnt # show all currently mounted devices | ||
+ | findmnt -t ext4,cifs # show mounted devices with a certain file system type | ||
+ | mount # show all currently mounted devices (deprecated!) | ||
cat /etc/mtab # .. | cat /etc/mtab # .. | ||
cat /proc/mounts # .. | cat /proc/mounts # .. | ||
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[Install] | [Install] | ||
WantedBy=multi-user.target | WantedBy=multi-user.target | ||
+ | </code> | ||
+ | |||
+ | Starting and stopping services works as follows: | ||
+ | <code bash> | ||
+ | systemctl start myservice | ||
+ | systemctl stop myservice | ||
+ | systemctl status myservice | ||
+ | </code> | ||
+ | |||
+ | Logs of a service can be accessed via ''journalctl'': | ||
+ | <code bash> | ||
+ | journalctl -u myservice | ||
</code> | </code> | ||
====== Package Management ====== | ====== Package Management ====== |