计科 on MEMEX

Linux 开机及引导过程

wyz2016zxc@outlook.com(Hiraeth) — Sat, 05 Sep 2026 00:00:00 +0000

uefi, grub 等

Linux的文件系统

wyz2016zxc@outlook.com(Hiraeth) — Wed, 26 Aug 2026 00:00:00 +0000

#Linux的文件系统

##分类

ext4
btrfs
ntfs
exfat
fat32
zfs
xfs

##权限系统

##attr

##btrfs

Archlinux 性能优化

wyz2016zxc@outlook.com(Hiraeth) — Wed, 26 Aug 2026 00:00:00 +0000

和 deepseek 对话，查 archwiki，以及实践后的记录

awesome

wyz2016zxc@outlook.com(Hiraeth) — Fri, 22 May 2026 00:00:00 +0000

#Awesome

a list of awesome, that is, awesome-

好用的单行命令

wyz2016zxc@outlook.com(Hiraeth) — Fri, 27 Mar 2026 00:00:00 +0000

awesome one-liner commands

grub rescue

wyz2016zxc@outlook.com(Hiraeth) — Tue, 06 Jan 2026 00:00:00 +0000

在windows下搞坏grub又没有live系统，使用神秘的grub rescue启动linux

git底层设计

wyz2016zxc@outlook.com(Hiraeth) — Wed, 17 Dec 2025 00:00:00 +0000

了解了一下git的底层实现方式，感觉很厉害，记录一下

niri

wyz2016zxc@outlook.com(Hiraeth) — Tue, 02 Dec 2025 00:00:00 +0000

wayland下paper scroll 的 wm

hugo

wyz2016zxc@outlook.com(Hiraeth) — Tue, 02 Dec 2025 00:00:00 +0000

自制hugo主题后做一些记录

一些sh脚本

wyz2016zxc@outlook.com(Hiraeth) — Sat, 25 Oct 2025 00:00:00 +0000

#scripts example

TEXT

find . -name "*.md" -type f -exec grep -lE "Finished" {} + | while read file; do
  if ! grep -q "2025-05-31" "$file"; then
    number=$(awk '/^pages: [0-9]+/ {print $2}' "$file")
    if [ -n "$number" ]; then
      sed -i "/Finished/i\\- 2025-05-31: $number" "$file"
      echo "已处理: $file - 插入: - 2025-05-31: $number"
    else
      echo "跳过: $file (未找到pages数字或有效日期)"
    fi
  else
    echo "排除: $file (包含 2025-05-31)"
  fi
done

TEXT

# 创建备份和日志
backup_dir="backup_$(date +%Y%m%d)"
mkdir -p "$backup_dir"
log_file="replace_log.txt"

echo "开始替换操作 $(date)" > "$log_file"

find . -name "*.md" -type f | while read file; do
    # 检查文件是否包含目标字符串
    if grep -q "- 2025-06-01: Finished" "$file"; then
        # 创建备份
        cp "$file" "$backup_dir/$(basename "$file")"
        # 执行替换
        sed -i 's/- 2025-06-01: Finished/- 2025-05-31: Finished/g' "$file"
        # 记录日志
        echo "已修改: $file" >> "$log_file"
        # 显示变更
        echo "=== $file 修改内容 ==="
        diff "$backup_dir/$(basename "$file")" "$file" || true
    else
        echo "无修改: $file" >> "$log_file"
    fi
done

echo "操作完成，备份在 $backup_dir，日志见 $log_file"

TEXT

find . -name "*.md" -type f -exec grep -l "lists: book" {} + | \
while read file; do
    if ! grep -q "Finished" "$file"; then
        # 确保文件末尾有空行（避免追加内容粘连）
        [ -n "$(tail -c 1 "$file")" ] && echo >> "$file"
        # 追加内容
        echo "- 2025-06-01: Finished" >> "$file"
        echo "已处理: $file"
    else
        echo "跳过: $file (已包含 Finished)"
    fi
done

TEXT

find . -name "*.md" -type f -exec grep -L "Finished" {} + | while read file; do
    awk 'BEGIN {done=0} /^---/ && !done {print; print "- 2025-06-01: Finished"; done=1; next} 1' "$file" > tmp && mv tmp "$file"
done