{"id":297,"date":"2009-04-25T16:18:22","date_gmt":"2009-04-25T23:18:22","guid":{"rendered":"http:\/\/www.partofthething.com\/thoughts\/?p=297"},"modified":"2009-04-25T16:18:22","modified_gmt":"2009-04-25T23:18:22","slug":"commands-to-do-stuff-in-linux","status":"publish","type":"post","link":"https:\/\/partofthething.com\/thoughts\/commands-to-do-stuff-in-linux\/","title":{"rendered":"commands to do stuff in linux"},"content":{"rendered":"

Here are some nice commands.<\/p>\n

Combine lots of pdf files:<\/p>\n

gs -dNOPAUSE -sDEVICE=pdfwrite -sOUTPUTFILE=combinedpdf.pdf -dBATCH 1.pdf 2.pdf 3.pdf<\/code><\/p>\n

Convert eps files to eps files with perfectly fitting bounding boxes:<\/p>\n

epstool --copy -b file1.eps newfile.eps<\/code><\/p>\n

Pull pages out of a pdf (more<\/a>):
\n
\npdftk A=one.pdf B=two.pdf cat A1-7 B1-5 A8 output combined.pdf<\/code><\/p>\n

Make a quicktime movie with ffmpeg:
\n
\nffmpeg -f mp4 -vcodec mpeg4 -i case3-flyby.avi case3-flyby.mov<\/code><\/p>\n

Encode lots of jpgs to avi:
\nmencoder mf:\/\/hexes???.jpg -mf fps=10:type=jpg -ovc lavc -lavcopts vcodec=mpeg4 -oac copy -o output.avi<\/code><\/p>\n

Convert pngs to jpg:
\nmogrify -format jpg -quality 90 hexes???.png<\/code><\/p>\n

Shrink a bunch of jpgs:
\nconvert -resize 20% IMG_2704.JPG sm_IMG_2704.JPG
\n<\/code><\/p>\n

Pull audio out of a video file:
\nffmpeg -i was014.dv -ab 128 -ar 44100 was1.mp3<\/code><\/p>\n

Play audio faster or slower without changing the pitch
\nmplayer -af scaletempo was1-fixed-up.mp3 <\/code>. Use [ or ] to change speed.
\n(Note: you have to have a more modern version of mplayer to do this https:\/\/launchpad.net\/~rvm\/+archive\/mplayer)<\/p>\n

Run povray with 100 frames on the clock:
\npovray -W1200 -H1000 +kff100 hexes.pov<\/code><\/p>\n

\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

Here are some nice commands. Combine lots of pdf files: gs -dNOPAUSE -sDEVICE=pdfwrite -sOUTPUTFILE=combinedpdf.pdf -dBATCH 1.pdf 2.pdf 3.pdf Convert eps files to eps files with perfectly fitting bounding boxes: epstool –copy -b file1.eps newfile.eps Pull pages out of a pdf (more): pdftk A=one.pdf B=two.pdf cat A1-7 B1-5 A8 output combined.pdf Make a quicktime movie with … Continue reading commands to do stuff in linux<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"activitypub_content_warning":"","activitypub_content_visibility":"","activitypub_max_image_attachments":4,"activitypub_interaction_policy_quote":"anyone","activitypub_status":"","footnotes":""},"categories":[3],"tags":[],"class_list":["post-297","post","type-post","status-publish","format-standard","hentry","category-computers"],"_links":{"self":[{"href":"https:\/\/partofthething.com\/thoughts\/wp-json\/wp\/v2\/posts\/297","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/partofthething.com\/thoughts\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/partofthething.com\/thoughts\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/partofthething.com\/thoughts\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/partofthething.com\/thoughts\/wp-json\/wp\/v2\/comments?post=297"}],"version-history":[{"count":0,"href":"https:\/\/partofthething.com\/thoughts\/wp-json\/wp\/v2\/posts\/297\/revisions"}],"wp:attachment":[{"href":"https:\/\/partofthething.com\/thoughts\/wp-json\/wp\/v2\/media?parent=297"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/partofthething.com\/thoughts\/wp-json\/wp\/v2\/categories?post=297"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/partofthething.com\/thoughts\/wp-json\/wp\/v2\/tags?post=297"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}