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Ffmepg - 版本历史
2026-04-17T03:30:16Z
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Evan：/* 对有字母和数字的文件名排序后合并shell version */
2024-09-19T14:21:47Z
<p><span class="autocomment">对有字母和数字的文件名排序后合并shell version</span></p>
<p><b>新页面</b></p><div>=Usage=<br />
<pre><br />
# mylist.txt >>><br />
file '1.mp4'<br />
file '2.mp4'<br />
file '3.mp4'<br />
# 这些文件是相对路径，如使用绝对路径需要添加 `-safe 0` 参数<br />
$ ffmpeg -f concat -i mylist.txt -c copy output.mp3 #or output.mp4<br />
</pre><br />
== 对有字母和数字的文件名排序后合并shell version==<br />
<br />
<pre><br />
<br />
原因 kevin大神合并的文件是有漏的，而我想合并一些只是自己喜欢学过的比较easy的 所以<br />
<br />
<br />
1. 得到文件列表 <br />
<br />
➜ for loop in `ls`<br />
for> do<br />
for> echo $loop <br />
for> done <br />
englishpod_B0111mydg.mp3<br />
englishpod_B0113mydg.mp3<br />
englishpod_B0115mydg.mp3<br />
englishpod_B0119mydg.mp3<br />
englishpod_C0112mydg.mp3<br />
englishpod_C0114mydg.mp3<br />
englishpod_C0118mydg.mp3<br />
englishpod_D0117mydg.mp3<br />
<br />
另存到 0 <br />
<br />
2. 按字母 awk sort <br />
<br />
➜ awk -v OFS='\t' '{rec=$0; gsub(/[^[:digit:]]+/, "", rec); print rec, $0}' 0 |sort -nk1 | cut -d $'\t' -f2- <br />
englishpod_B0111mydg.mp3<br />
englishpod_C0112mydg.mp3<br />
englishpod_B0113mydg.mp3<br />
englishpod_C0114mydg.mp3<br />
englishpod_B0115mydg.mp3<br />
englishpod_D0117mydg.mp3<br />
englishpod_C0118mydg.mp3<br />
englishpod_B0119mydg.mp3<br />
<br />
awk -v OFS='\t' '{rec=$0; gsub(/[^[:digit:]]+/, "", rec); print rec, $0}' 0 |sort -nk1 | cut -d $'\t' -f2- >list.txt <br />
<br />
3. 添加head <br />
➜ 111 sed -i "s/^/file '/g" list.txt <br />
file 'englishpod_B0111mydg.mp3<br />
file 'englishpod_C0112mydg.mp3<br />
file 'englishpod_B0113mydg.mp3<br />
file 'englishpod_C0114mydg.mp3<br />
file 'englishpod_B0115mydg.mp3<br />
file 'englishpod_D0117mydg.mp3<br />
file 'englishpod_C0118mydg.mp3<br />
file 'englishpod_B0119mydg.mp3 <br />
<br />
添加 tail <br />
➜ 111 sed -i "s/$/&'/g" list.txt <br />
file 'englishpod_B0111mydg.mp3'<br />
file 'englishpod_C0112mydg.mp3'<br />
file 'englishpod_B0113mydg.mp3'<br />
file 'englishpod_C0114mydg.mp3'<br />
file 'englishpod_B0115mydg.mp3'<br />
file 'englishpod_D0117mydg.mp3'<br />
file 'englishpod_C0118mydg.mp3'<br />
file 'englishpod_B0119mydg.mp3'<br />
<br />
cat list.txt #最后文件列表文件排序后如下 <br />
file 'englishpod_B0111mydg.mp3'<br />
file 'englishpod_C0112mydg.mp3'<br />
file 'englishpod_B0113mydg.mp3'<br />
file 'englishpod_C0114mydg.mp3'<br />
file 'englishpod_B0115mydg.mp3'<br />
file 'englishpod_D0117mydg.mp3'<br />
file 'englishpod_C0118mydg.mp3'<br />
file 'englishpod_B0119mydg.mp3'<br />
<br />
<br />
ffmpeg -f concat -i list.txt -c copy 111-120.mp3<br />
<br />
<br />
<br />
</pre><br />
=== shell 解说===<br />
<pre><br />
awk -v OFS='\t' '{rec=$0; gsub(/[^[:digit:]]+/, "", rec); print rec, $0}' file<br />
| sort -nk1 | cut -d $'\t' -f2-<br />
bc14de<br />
cd 18<br />
abc90<br />
100def<br />
<br />
awk用于在输入中添加仅使用gsub的数字字符的第一列。<br />
sort -nk1用于对第一列的输入进行数字排序。<br />
cut最终用于截断第一列。<br />
<br />
awk -v OFS='\t' '{rec=$0; gsub(/[^[:digit:]]+/, "", rec); print rec, $0}' file \<br />
| sort -nk1 | cut -d $'\t' -f2-<br />
bc14de<br />
cd 18<br />
abc90<br />
100def<br />
<br />
awk is used to add a first column in input with only numeric characters using gsub<br />
sort -nk1 is used for sorting input numerically on first column<br />
cut is finally used to truncate first column<br />
<br />
<br />
<br />
</pre><br />
https://stackoverflow.com/questions/31889233/how-to-sort-alphanumeric-by-numbers-in-shell<br />
<br />
https://wangchujiang.com/reference/docs/ffmpeg.html<br />
<br />
=install=<br />
==yum==<br />
<pre><br />
rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7<br />
rpm --import http://li.nux.ro/download/nux/RPM-GPG-KEY-nux.ro<br />
#rpm -Uvh http://li.nux.ro/download/nux/dextop/el7/x86_64/nux-dextop-release-0-1.el7.nux.noarch.rpm<br />
sudo rpm -Uvh http://li.nux.ro/download/nux/dextop/el7/x86_64/nux-dextop-release-0-5.el7.nux.noarch.rpm<br />
yum install -y ffmpeg #ffmpeg-devel 开发包<br />
</pre><br />
<br />
=refercence=<br />
[https://www.cnblogs.com/wpjamer/p/ffmpeg.html CentOS中yum安装ffmpeg]<br />
<br />
[https://blog.csdn.net/weixin_40156882/article/details/121240732 nginx流媒体服务器（基于CentOS7）实现rtmp直播流，m3u8视频流]<br />
<br />
<br />
<br />
[[category:devops]]</div>
Evan