Here is the one liner. ls -lhtTr It will output something like total 24152 -rw-rw-r-- 1 sean staff 1.0M May 4 14:31:42 2019 4c2caf52cb084ea39a6a65a0e68ee382 -rw-rw-r-- 1 sean staff 1.0M May 4 14:31:44 2019 76eeeea5d...

Here is the one liner. ls -lhtTr It will output something like total 24152 -rw-rw-r-- 1 sean staff 1.0M May 4 14:31:42 2019 4c2caf52cb084ea39a6a65a0e68ee382 -rw-rw-r-- 1 sean staff 1.0M May 4 14:31:44 2019 76eeeea5d...

If you want to time how long a piped bash command take, use the `time` command followed by your commands in parens like so.. time (ls -lha | wc -l)

Heroku is awesome! Let's say we want to copy a production database to a staging database. We can use the `pg:backups:restore` command to accomplish this. Here is an example. For the source database we are using the `production-app-name` and for stagi...

It's short and sweet! du -hs * If you run this command it will tell you the sizes of all the files and folder in the current directory. The `-h` flag is for human readable format and the `-s` will give you the size for each file or directory. ...

When Heroku creates a dump file of your Postgres database it uses the `-Fc` option It is equivalent to running pg_dump -Fc -d name_of_db > name_of_db.dump This command will let you import your database with the `pg_restore` command pg_rest...

If you run into authentication failure when trying to upload packages Submitting dist/ to https://upload.pypi.org/legacy/ Upload failed (403): Invalid or non-existent authentication information. error: Upload failed (403): Invalid or non-existent...

find path/ -name *.txt

Here is the snippet f path/to/directory 'search string' | open_in_mate This snippet (technically 2 snippets) will recursively scan the contents of files in a directory and then open all the files it finds in Textmate. It's useful on large projec...

You need to read from STDIN rather than parse command line arguments. while $stdin.gets puts $_ end

Use the split command. split -l 1000 name-of-file output/directory You can set the number of lines (the "-l" flag) to split on and also the location of where the split files should be saved. Note, the output directory must already exists....

egrep -or "(http(s)?://){1}[^'\"]+" path/to/directory You can further reduce to just return the images by piping again. grep -r src views/ | egrep -o "(mailto|ftp|http(s)?://){1}[^'\"]+" The -r flag is for a recursive directory scan....

The -r flag is for recursive, meaning it will also look in sub directories. The -i flag is for case insensitivity, meaning WORD and word will both be found. grep -ir "search term" directory/path

Turn this into this You can use ImageMagick to make blurry images. To install with Homebrew on OS X. brew install imagemagick After installing you can run from the command line convert yourimage.png -channel RGBA -blu...

How much memory is on my linux server? Run the free command free -g total used free shared buffers cached Mem: 2 1 0 0 0 1 -/+ buffers/cache: 0 1 Swap: ...

Uncompress a bz2 file using tar command tar --use-compress-program bzip2 -xvf your-file-to-uncompress.tar.bz2 @source http://www.kde.gr.jp/help/doc/kdebase/doc/khelpcenter/faq/HTML/bzip2.html...

I often find myself coding with the terminal open. Cding around a web app project I usually end up at some point launching Photoshop. Either to touch up or work on a psd, png, jpg ...etc. I fire up Photoshop and then navigate to the app's public directory...

It's Short and sweet! Just remember that the finished zip filename is the first argument and the directory you wish to recursively zip comes after. zip -r name_of_your_directory.zip name_of_your_directory That's all. You might be intere...

To create a new user on Ubuntu (Heron8) adduser johndoe To create a new group groupadd barleyfarmers Add johndoe to the barleyfarmers group adduser johndoe barleyfarmers The adduser command, when you're first adding the new user accou...