Commands by dfaulkner (4)

What's this? is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

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delete files containing matching text
-r recursively -Z zero byte after each file name instead of the usual newline -l only filenames

Copy stdin to your X11 buffer
Have you ever had to scp a file to your work machine in order to copy its contents to a mail? xclip can help you with that. It copies its stdin to the X11 buffer, so all you have to do is middle-click to paste the content of that looong file :)

Create a new file

grep for minus (-) sign
Use flag "--" to stop switch parsing

Know which version dpkg/apt considers more recent
Compares two versions with dpkg. It is not always obvious what version dpkg/apt will consider to be more recent. Operators include the following : * These treat an empty version as earlier than any version: lt le eq ne ge gt. * These treat an empty version as later than any version: lt-nl le-nl ge-nl gt-nl. * These are provided only for compatibility with control file syntax: < > >. This command doesn't output anything. It only returns with status 0 or 1, hence the echo "y" || echo "n" to get an output.

Test disk I/O
Especially useful to gauge the performance of a VPS.

Take a screenshot of the focused window with a 4 second countdown
Take a screenshot of the focused window with a 4 second countdown # shorten by adding to your .bashrc: alias sss='scrot -ucd4 && eog $(ls -tr | tail -n1)' $ echo -e "\nalias sss='scrot -ucd4 && eog $(ls -tr | tail -n1)'" >> ~/.bashrc -d 4 second delay -c display countdown -u focused window man scrot for more flags

Find partition name using mount point
lsblk | grep mountpoint

Create a mirror of a local folder, on a remote server
Create a exact mirror of the local folder "/root/files", on remote server 'remote_server' using SSH command (listening on port 22) (all files & folders on destination server/folder will be deleted)

Replicate a directory structure dropping the files

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Follow the Tweets.

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