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cool-oneliner.pod

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cool one liner program

http://www.perlmonks.org/?node_id=940559
perl -le '$_=1;print,s/(\d+) ?/+$1 $1/g,s/\S+/$&/eeg until$a++>15'

          perl -le '$_=o;print,s/./$&$&/g,s/(?!^)(.)(.)/$1^$2^_/eg until$a++>80'
去掉文件名首的 .
for i in `ls .[a-zA-Z1-9]*`; do mv -v $i ${i:1}; done
从视频文件里提取某个片段
从 $in-file 拷贝 begin-time 到 begin-time+duration 时间断内的视频,视频和音频拷贝,丢掉字幕

ffmpeg -i $in-file -ss begind-time[00:04:09] -t duration[00:05:00] -vcodec copy -acodec copy -sn $out-file
mplayer 循环播放歌曲
mplayer music-file -loop $times
: $times 播放次数, 0 则无限循环
使用 ffmpeg 对视频截图
ffmpeg -i INPUT-FILE -y -f image2 -ss 5 -s 352x240 -vframes 1 OUTPUT.jpg
ffmpeg -i INPUT-File -y -f image2 -ss 5 -t 0.001 -s 352x240 OUTPUT.jpg
mplayer get screenshot
mplayer -ss START_TIME -nosound -vo png -frames NUMBER -vf "scale=HEIGHT:WIDTH" SOURCE_FILE
去掉最后一行
sed -i '$d' file
指定 ip 访问域名
curl -v -l -H 'Host:example.org' http://xxx.xxx.xxx.xxx/path/to/request
curl -vx xxx.xxx.xxx.xxx:80 http://example.org/path/to/request
wget http://xxx.xxx.xxx.xxx/path/to/request --header='host:example.org'
mplayer 字幕在视频图片的下方
# 全屏时字幕下移
mpalyer -subcp srt-encode -sub srt-file-name -vo gl file-name
# 图像上移
mpalyer -subcp srt-encode -sub srt-file-name -vf expand=0:-80:0:0 file-name
使用不同格式的字幕
# 繁体字幕
mplayer -subcp big5 -sub file-name.cht.srt film-file-name
mplayer -subcp gb18030 -sub file-name.cht.srt film-file-name
# 简体字幕
mplayer -subcp gb2312 -sub file-name.cht.srt film-file-name
mplayer -subcp cp936 -sub file-name.cht.srt film-file-name
show specific line # show 4075th of file perl -lne 'print, exit if $. == 4075' file.txt sed -n '4075p' file.txt awk 'NR==4075' file.txt

POD ERRORS

Hey! The above document had some coding errors, which are explained below:

Around line 7:

=over without closing =back