55 lines
2 KiB
Markdown
55 lines
2 KiB
Markdown
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---
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title: Linux System Tweaks
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description: Applies a set of generic Linux system tweaks such as ensuring the hostname is set, setting the timezone, and more
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sidebar_label: 10 Linux System Tweaks
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slug: /scripts/before/run_onchange_before_10-system-tweaks.sh.tmpl
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githubLocation: https://github.com/megabyte-labs/install.doctor/blob/master/home/.chezmoiscripts/universal/run_onchange_before_10-system-tweaks.sh.tmpl
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scriptLocation: https://github.com/megabyte-labs/install.doctor/raw/master/home/.chezmoiscripts/universal/run_onchange_before_10-system-tweaks.sh.tmpl
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repoLocation: home/.chezmoiscripts/universal/run_onchange_before_10-system-tweaks.sh.tmpl
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---
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# Linux System Tweaks
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Applies a set of generic Linux system tweaks such as ensuring the hostname is set, setting the timezone, and more
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## Overview
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This script applies generic Linux system tweaks that should be made before the rest of the provisioning process.
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## Source Code
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```
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{{- if (eq .host.distro.family "linux") -}}
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#!/usr/bin/env bash
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# @file Linux System Tweaks
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# @brief Applies a set of generic Linux system tweaks such as ensuring the hostname is set, setting the timezone, and more
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# @description
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# This script applies generic Linux system tweaks that should be made before the rest of the provisioning process.
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{{ includeTemplate "universal/profile-before" }}
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{{ includeTemplate "universal/logg-before" }}
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### Set hostname (if redefined)
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if command -v hostnamectl > /dev/null; then
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# Betelgeuse is the default hostname so only change when it is different
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if [ '{{ .host.hostname }}' != 'Betelgeuse' ]; then
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logg info "Setting hostname to {{ .host.hostname }}"
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sudo hostnamectl set-hostname {{ .host.hostname }}
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fi
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fi
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### Set timezone
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if command -v timedatectl > /dev/null; then
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logg info 'Setting timezone to `{{ .user.timezone }}`'
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sudo timedatectl set-timezone {{ .user.timezone }}
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fi
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### Modify vm.max_map_count
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if command -v sysctl > /dev/null; then
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logg info 'Increasing vm.max_map_count size to 262144'
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sudo sysctl -w vm.max_map_count=262144 > /dev/null
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fi
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{{ end -}}
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```
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