mirror of
https://github.com/spiritLHLS/one-click-installation-script.git
synced 2024-11-16 06:52:18 +08:00
113 lines
4.1 KiB
Bash
113 lines
4.1 KiB
Bash
#!/bin/bash
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#by spiritlhl
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#from https://github.com/spiritLHLS/one-click-installation-script
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#version: 2022.12.18
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red(){ echo -e "\033[31m\033[01m$1$2\033[0m"; }
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green(){ echo -e "\033[32m\033[01m$1$2\033[0m"; }
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yellow(){ echo -e "\033[33m\033[01m$1$2\033[0m"; }
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reading(){ read -rp "$(green "$1")" "$2"; }
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head() {
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# 支持系统：Ubuntu 12+，Debian 6+
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ver="2022.12.18"
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changeLog="一键修改journal日志记录大小，释放系统盘空间"
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clear
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echo "#######################################################################"
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echo "# ${YELLOW}一键修改journal大小脚本${PLAIN} #"
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echo "# 版本：$ver #"
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echo "# 更新日志：$changeLog #"
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echo "# ${GREEN}作者${PLAIN}: spiritlhl #"
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echo "# ${GREEN}作仓库${PLAIN}: https://github.com/spiritLHLS/one-click-installation-script #"
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echo "#######################################################################"
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echo "支持系统：Ubuntu 18+，Debian 8+，centos 7+，Fedora，Almalinux 8.5+"
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echo "1.自定义修改大小，单位为MB，一般500或者1000即可，有的系统日志默认给了5000甚至更多，不是做站啥的没必要"
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echo "请注意，修改journal目录大小会影响系统日志的记录，因此，在修改journal目录大小之前如果需要之前的日志，建议先备份系统日志到本地"
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echo "2.自定义修改设置系统日志保留日期时长，超过日期时长的日志将被清除"
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echo "3.默认修改日志只记录warning等级(无法自定义)"
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echo "4.以后日志的产生将受到日志文件大小，日志保留时间，日志保留等级的限制"
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# Display prompt asking whether to proceed with changing
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reading "Do you want to proceed with changing? [y/n] " confirm
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echo ""
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# Check user's input and exit if they do not want to proceed
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if [ "$confirm" != "y" ]; then
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exit 0
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fi
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reading "Enter the desired day of the journal retention days (eg: 7): " retention_days
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reading "Enter the desired size of the journal directory in MB (eg: 500): " size
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}
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main() {
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# Set default value for size
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size="$size"M
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temp_file=$(mktemp)
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backup_file="/etc/systemd/journald.conf-$(date +%Y%m%d%H%M%S).bak"
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sudo cp /etc/systemd/journald.conf "$backup_file"
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yellow "Backed up /etc/systemd/journald.conf to $backup_file"
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awk -v size="$size" '{ if ($1 == "SystemMaxUse=") { print "SystemMaxUse=" size } else { print $0 } }' /etc/systemd/journald.conf > "$temp_file"
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sudo cp "$temp_file" /etc/systemd/journald.conf
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rm "$temp_file"
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# Restart journald service
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systemctl restart systemd-journald
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green "change /etc/systemd/journald.conf successfully"
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}
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level() {
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# Set default values for variables
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log_level=warning
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journald_log_dir="/var/log/journal"
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# Check if log directory exists
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if [ ! -d "$journald_log_dir" ]; then
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yellow "Log directory not found, so no delete" >&2
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else
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# Set log retention period
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find "$journald_log_dir" -mtime +$retention_days -exec rm {} \;
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green "change $journald_log_dir successfully"
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fi
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# Check if config file exists
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if [ ! -f /etc/rsyslog.conf ]; then
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red "Config file (/etc/rsyslog.conf) not found, so not modify" >&2
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else
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# Set log level
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temp_file=$(mktemp)
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backup_file="/etc/rsyslog.conf-$(date +%Y%m%d%H%M%S).bak"
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sudo cp /etc/rsyslog.conf "$backup_file"
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yellow "Backed up /etc/rsyslog.conf to $backup_file"
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if grep -q "loglevel" /etc/rsyslog.conf; then
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awk -v log_level="$log_level" '{ if ($1 == "loglevel") { print "loglevel = " log_level } else { print $0 } }' /etc/rsyslog.conf > "$temp_file"
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else
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cat /etc/rsyslog.conf > "$temp_file"
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echo "loglevel = $log_level" >> "$temp_file"
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fi
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sudo cp "$temp_file" /etc/rsyslog.conf
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rm "$temp_file"
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green "change /etc/rsyslog.conf successfully"
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fi
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}
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check_again() {
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# Loop for 5 seconds, printing journald disk usage every second
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count=0
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while [ $count -lt 5 ]; do
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journalctl --disk-usage
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count=$((count+1))
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sleep 1
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done
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}
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head
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main
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level
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check_again
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