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将youtube播放列表中的单个文件大小相加以获得总文件大小值

youtube-dl ubuntu bash linux

-1

Rick T · 技术社区 · 4 年前

我可以得到 文件大小 youtube播放列表中的每个文件,但是 如何将所有单独的文件大小加在一起,以获得所有文件加在一起的总大小(MB或GB) ?

示例:Linux/Uubuntu命令

youtube-dl --get-filename -o "File size for %(id)s (%(format_id)s): %(filesize)s = 125*%(duration)s*%(tbr)s" -f "22/best" --ignore-config  "https://www.youtube.com/watch?v=b26ZBgspv7M&list=PLLYQF5WvJdJXE-aP7oF5ucXcCfHmub34A" | (IFS='='; while read -r a b; do echo "$a = $(echo "$b" | bc)"; done)

File size for b26ZBgspv7M (22): NA  = 632016.000
File size for nPr3qtZ5FVE (18): NA  = 47577837.000
File size for 8FCsS6s1Z0k (18): NA  = 67788616.500
File size for TZANoOWFX1M (18): 62402644  = 62393587.750
File size for XA5eobevGv8 (22): NA  = 117960449.500
File size for lDplUpPoCcI (22): NA  = 175676293.75
File size for a7TUIkn3qjY (22): NA  = 299391049.125
File size for HFPObieGamg (22): NA  = 270756696.875
File size for PiiDs8dzSXk (22): NA  = 55946363.250
File size for tth0p7nK18A (22): NA  = 31281180.00
File size for Z_xj9ZTV8ak (22): NA  = 126366879.000
File size for Y_YHqM5nTHA (22): NA  = 42328527.000
File size for BjV-fRCPgAM (22): NA  = 42225633.375

0 回复 | 直到 4 年前

1

Arkadiusz Drabczyk 4 年前

你似乎不知道如何分割输入——然后求和就可以了。

youtube-dl ..... | (
   sum=0
   while IFS='=' read -r a b; do
       sum=$(echo "$sum + $b" | bc)
   done
   echo "The sum: $sum"
)

感兴趣 awk ,这是一个非常方便的工具。您可以搜索“如何在awk中求和列”,确保您会得到大量的示例。

2

1

M. Nejat Aydin 4 年前

你几乎做到了:

youtube-dl ...args...  |
{ while IFS='=' read -r a b; do printf '%s + ' "$b"; done; echo 0; }  | bc

或使用 cut 和 tr :

youtube-dl ...args...  |
{ cut -d= -f2 | tr '\n' +; echo 0; } | bc

或使用 sed

youtube-dl ...args...  |
sed 's/.*=//;H;$!d;g;s/.//;s/\n/+/g' | bc

3

1

Léa Gris 4 年前

编写要馈送的整个算术 bc :

#!/usr/bin/env sh

echo "125*(0$(youtube-dl --get-filename -o "+(%(duration)s*%(tbr)s)" -f "22/best" --ignore-config  "https://www.youtube.com/watch?v=b26ZBgspv7M&list=PLLYQF5WvJdJXE-aP7oF5ucXcCfHmub34A"))" |
{ tr -d '\n'; echo;} |
bc -l

首先打印 125*(0 然后 youtube-dl 打印连续的 +(duration*tbr) 后面跟着一条换行符, 然后添加尾部 ) 导致类似于:

125*(0+(duration*tbr)
+(duration*tbr)
+(duration*tbr)
)

将其转换为有效 bc 计算语法,换行符需要丢弃 tr -d '\n' ,最后一行添加了 echo

4

0

Rick T 4 年前

包括单个文件大小,最后加上总和。

youtube-dl --get-filename -o "File size for %(id)s (%(format_id)s): %(filesize)s = 125*%(duration)s*%(tbr)s" -f "22/best" --ignore-config  "https://www.youtube.com/watch?v=b26ZBgspv7M&list=PLLYQF5WvJdJXE-aP7oF5ucXcCfHmub34A" | (
       sum=0
       while IFS='=' read -r a b; do
           echo "$a = $(echo "$b" | bc)"
           sum=$(echo "$sum + $b" | bc)
       done
       echo "The sum: $sum"
    )

输出

File size for b26ZBgspv7M (22): NA  = 632016.000
File size for nPr3qtZ5FVE (18): NA  = 47577837.000
File size for 8FCsS6s1Z0k (18): NA  = 67788616.500
File size for TZANoOWFX1M (18): 62402644  = 62393587.750
File size for XA5eobevGv8 (22): NA  = 117960449.500
File size for lDplUpPoCcI (22): NA  = 175676293.75
File size for a7TUIkn3qjY (22): NA  = 299391049.125
File size for HFPObieGamg (22): NA  = 270756696.875
File size for PiiDs8dzSXk (22): NA  = 55946363.250
File size for tth0p7nK18A (22): NA  = 31281180.00
File size for Z_xj9ZTV8ak (22): NA  = 126366879.000
File size for Y_YHqM5nTHA (22): NA  = 42328527.000
File size for BjV-fRCPgAM (22): NA  = 42225633.375
The sum: 1340325129.125