mirror of
https://github.com/spiritLHLS/one-click-installation-script.git
synced 2024-11-16 11:22:17 +08:00
127 lines
4.4 KiB
Bash
127 lines
4.4 KiB
Bash
#!/bin/bash
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head() {
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# 支持系统：Ubuntu 12+，Debian 6+
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ver="2022.12.17"
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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 12+，Debian 6+"
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echo "自定义修改大小，单位为MB，一般500M或者1G即可，有的系统日志默认给了5G甚至更多，不是做站啥的没必要"
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echo "请注意，修改journal目录大小可能会影响系统日志的记录。因此，在修改 journal 目录大小之前，建议先备份系统日志到本地"
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# Display prompt asking whether to proceed with changing
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read -p "Do you want to proceed with changing? [y/n] " -n 1 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 [ "$confirm" != "y" ]; then
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exit 0
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fi
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}
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main() {
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# Prompt the user for the desired size of the journal directory in MB
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read -p "Enter the desired size of the journal directory in MB: " JOURNAL_SIZE_MB
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# Convert the size from MB to bytes
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JOURNAL_SIZE=$((JOURNAL_SIZE_MB * 1024 * 1024))
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# Set the path to the journal directory
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JOURNAL_DIR="/var/log/journal"
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# Set the name of the log recording service
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LOG_SERVICE="systemd-journald"
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# Try setting the size of the journal directory with systemd-journal-size
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if command -v systemd-journal-size &> /dev/null; then
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systemd-journal-size --disk-space=$JOURNAL_SIZE
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if [ $? -ne 0 ]; then
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echo "Failed to set journal size using systemd-journal-size"
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else
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success=true
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fi
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fi
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# If the previous method failed, try setting the size with journalctl
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if ! $success && command -v journalctl &> /dev/null; then
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journalctl --disk-space=$JOURNAL_SIZE
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if [ $? -ne 0 ]; then
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echo "Failed to set journal size using journalctl"
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else
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success=true
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fi
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fi
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# If the previous methods failed, try setting the size in journald.conf
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if ! $success && [ -f /etc/systemd/journald.conf ]; then
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# Check if the file is writable
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if [ ! -w /etc/systemd/journald.conf ]; then
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# If the file is not writable, try changing its permissions
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chmod +w /etc/systemd/journald.conf
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if [ $? -ne 0 ]; then
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echo "Failed to change permissions of journald.conf"
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continue
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fi
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fi
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# Check if the line containing SystemMaxUse is commented out
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if grep -q '^#\s*SystemMaxUse=' /etc/systemd/journald.conf; then
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# If it is commented out, uncomment it
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sed -i "s/^#\s*SystemMaxUse=.*/SystemMaxUse=$JOURNAL_SIZE/g" /etc/systemd/journald.conf
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else
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# If it is not commented out, just update the value
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sed -i "s/^SystemMaxUse=.*/SystemMaxUse=$JOURNAL_SIZE/g" /etc/systemd/journald.conf
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fi
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if [ $? -ne 0 ]; then
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echo "Failed to set journal size using journald.conf"
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else
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success=true
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fi
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# Check if the line containing ForwardToSyslog is commented out
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if grep -q '^#\s*ForwardToSyslog=' /etc/systemd/journald.conf; then
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# If it is commented out, uncomment it and set the value to no
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sed -i "s/^#\s*ForwardToSyslog=.*/ForwardToSyslog=no/g" /etc/systemd/journald.conf
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else
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# If it is not commented out, just update the value
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sed -i "s/^ForwardToSyslog=.*/ForwardToSyslog=no/g" /etc/systemd/journald.conf
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fi
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if [ $? -ne 0 ]; then
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echo "Failed to set ForwardToSyslog to no in journald.conf"
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else
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success=true
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fi
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# Restore the original permissions of the file
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chmod -w /etc/systemd/journald.conf
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if [ $? -ne 0 ]; then
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echo "Failed to restore permissions of journald.conf"
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fi
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fi
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# Restart the log recording service to force log rotation
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sudo systemctl kill --kill-who=main --signal=SIGUSR2 systemd-journald.service
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# Loop for 10 seconds, printing journald disk usage every second
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count=0
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while [ $count -lt 10 ]; do
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journalctl --disk-usage
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count=$((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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