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wyz2016zxc@outlook.com(Hiraeth) — Mon, 10 Aug 2026 00:00:00 +0000

三种数据格式的对比与使用

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

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

编程语言概览

wyz2016zxc@outlook.com(Hiraeth) — Sat, 12 Jul 2025 00:00:00 +0000

编程语言的类型。主要为AI生成。

编程语言概览

wyz2016zxc@outlook.com(Hiraeth) — Sat, 12 Jul 2025 00:00:00 +0000

编程语言的类型。主要为AI生成。

lua

wyz2016zxc@outlook.com(Hiraeth) — Mon, 07 Jul 2025 00:00:00 +0000

#lua

##variable

lua

num = 42  -- Numbers can be integer or floating point.

s = 'walternate'  -- Immutable strings like Python.
t = "double-quotes are also fine"
u = [[ Double brackets
       start and end
       multi-line strings.]]
t = nil  -- Undefines t; Lua has garbage collection.

###string

##control

lua

if num > 40 then
  print('over 40')
elseif s ~= 'walternate' then  -- ~= is not equals.
  -- Equality check is == like Python; ok for strs.
  io.write('not over 40\n')  -- Defaults to stdout.
else
  -- Variables are global by default.
  thisIsGlobal = 5  -- Camel case is common.

  -- How to make a variable local:
  local line = io.read()  -- Reads next stdin line.

  -- String concatenation uses the .. operator:
  print('Winter is coming, ' .. line)
end

-- Undefined variables return nil.
-- This is not an error:
foo = anUnknownVariable  -- Now foo = nil.

aBoolValue = false

-- Only nil and false are falsy; 0 and '' are true!
if not aBoolValue then print('it was false') end

-- 'or' and 'and' are short-circuited.
-- This is similar to the a?b:c operator in C/js:
ans = aBoolValue and 'yes' or 'no'  --> 'no'

karlSum = 0
for i = 1, 100 do  -- The range includes both ends.
  karlSum = karlSum + i
end

-- Use "100, 1, -1" as the range to count down:
fredSum = 0
for j = 100, 1, -1 do fredSum = fredSum + j end

-- In general, the range is begin, end[, step].

-- Another loop construct:
repeat
  print('the way of the future')
  num = num - 1
until num == 0

lua

for k, v in pairs(t) do
    print(k, v)
end

array = {"Google", "Runoob"}

for key,value in ipairs(array)
do
   print(key, value)
end

##function

lua

function fib(n)
  if n < 2 then return 1 end
  return fib(n - 2) + fib(n - 1)
end

-- Closures and anonymous functions are ok:
function adder(x)
  -- The returned function is created when adder is
  -- called, and remembers the value of x:
  return function (y) return x + y end
end
a1 = adder(9)
a2 = adder(36)
print(a1(16))  --> 25
print(a2(64))  --> 100

-- Returns, func calls, and assignments all work
-- with lists that may be mismatched in length.
-- Unmatched receivers are nil;
-- unmatched senders are discarded.

x, y, z = 1, 2, 3, 4
-- Now x = 1, y = 2, z = 3, and 4 is thrown away.

function bar(a, b, c)
  print(a, b, c)
  return 4, 8, 15, 16, 23, 42
end

x, y = bar('zaphod')  --> prints "zaphod  nil nil"
-- Now x = 4, y = 8, values 15...42 are discarded.

-- Functions are first-class, may be local/global.
-- These are the same:
function f(x) return x * x end
f = function (x) return x * x end

-- And so are these:
local function g(x) return math.sin(x) end
local g; g  = function (x) return math.sin(x) end
-- the 'local g' decl makes g-self-references ok.

-- Calls with one string param don't need parens:
print 'hello'  -- Works fine.

多变量参数

awk

wyz2016zxc@outlook.com(Hiraeth) — Mon, 05 May 2025 00:00:00 +0000

#awk

##tldr

A versatile programming language for working on files. More information: .

Print the fifth column (a.k.a. field) in a space-separated file:

TEXT

awk '{print $5}' path/to/file

Print the second column of the lines containing “foo” in a space-separated file:

TEXT

awk '/foo/ {print $2}' path/to/file

Print the last column of each line in a file, using a comma (instead of space) as a field separator:

Bash Scripts

wyz2016zxc@outlook.com(Hiraeth) — Tue, 31 Dec 2024 00:00:00 +0000

编写bash scripts的一些技巧