Commands tagged ffmpeg (80)

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print/scan lines starting at record ###
Useful for finding newly added lines to a file, tail + can be used to show only the lines starting at some offset. A syslog scanner would look at the file for the first time, then record the end_of_file record number using wc -l. Later (hours, days), scan only at the lines that were added since the last scan.

Print compile time in seconds package by package (Gentoo Distros)

put current directory in LAN quickly

Find usb device in realtime
Using this command you can track a moment when usb device was attached.

Display a markdown file in a new tab in firefox

Cropping a video file in ffmpeg

Create a local compressed tarball from remote host directory
The command uses ssh(1) to get to a remote host, uses tar(1) to archive a remote directory, prints the result to STDOUT, which is piped to gzip(1) to compress to a local file. In other words, we are archiving and compressing a remote directory to our local box.

remove hostname from known_hosts

Grep recursively for a pattern and open all files that match, in order, in Vim, landing on 1st match

Randomize lines in a file
Works in sort (GNU coreutils) 7.4, don't know when it was implemented but sometime the last 6 years.


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