Recursively expand / collapse directories

`Alt` + `Arrow Left` / `Arrow Right` OR `Ctrl` + `Alt` + `[` / `]`

All hotkeys for Atom (text editor) 1.0 (Linux)

General Preferences	`Ctrl` + `,`
General Toggle command palette	`Ctrl` + `Shift` + `p`
General Browse list of open files	`Ctrl` + `b`
General Reload Atom	`Ctrl` + `Alt` + `r`
General Change synatx highlighting	`Ctrl` + `Shift` + `l`
General Show available code snippets	`Alt` + `Shift` + `s`
General Markdown preview	`Ctrl` + `Shift` + `m`
General Toggle Developer Tools	`Ctrl` + `Alt` + `i`
File Management New file	`Ctrl` + `n`
File Management New Window	`Ctrl` + `Shift` + `n`
File Management Open file (type the name to perform a search)	`Ctrl` + `p`
File Management Open file	`Ctrl` + `o`
File Management Open folder	`Ctrl` + `Shift` + `o`
File Management Save	`Ctrl` + `s`
File Management Save as	`Ctrl` + `Shift` + `s`
File Management Close tab	`Ctrl` + `w`
File Management Close window	`Ctrl` + `Shift` + `w`
Editing Lines Go to line	`Ctrl` + `g`
Editing Lines Select line	`Ctrl` + `l`
Editing Lines Duplicate line	`Ctrl` + `Shift` + `d`
Editing Lines Delete line	`Ctrl` + `Shift` + `k`
Editing Lines Move line up/down	`Ctrl` + `Arrow Up` / `Arrow Down`
Editing Lines Toggle comment line	`Ctrl` + `/`
Editing Lines New line below	`Ctrl` + `Enter`
Editing Lines New line above	`Ctrl` + `Shift` + `Enter`
Editing Lines Indent / outdent selected lines	`Ctrl` + `[` / `]`
Editing Lines Join lines	`Ctrl` + `j`
Editing Words and Brackets Move to beginning / end of current word	`Alt` + `b` / `f`
Editing Words and Brackets Select to beginning / end of current word	`Alt` + `Shift` + `b` / `f`
Editing Words and Brackets Delete to beginning of current word	`Ctrl` + `Backspace` OR `Alt` + `h`
Editing Words and Brackets Delete to end of current word	`Ctrl` + `Delete` OR `Alt` + `d`
Editing Words and Brackets Complete bracket	`Ctrl` + `Alt` + `.`
Editing Words and Brackets Go to matching bracket	`Ctrl` + `m`
Editing Words and Brackets Select code inside matching brackets	`Ctrl` + `Alt` + `m`
Code Folding Fold all code at indent level 1 ... 9	`Ctrl` + `k` , then `Ctrl` + `1 ... 9`
Code Folding Fold / unfold code	`Ctrl` + `Alt` + `/`
Code Folding Fold selected code	`Ctrl` + `Alt` + `f`
Code Folding Fold / unfold all code	`Ctrl` + `Alt` + `[` / `]`
Find and Replace Find in current file	`Ctrl` + `f`
Find and Replace Find in project	`Ctrl` + `Shift` + `f`
Find and Replace Find next	`F3`
Find and Replace Find previous	`Shift` + `F3`
Find and Replace Replace all	`Ctrl` + `Enter`
Find and Replace Use Regex in search	`Ctrl` + `Alt` + `/`
Find and Replace Match case in search	`Ctrl` + `Alt` + `c`
Find and Replace Search only in selection	`Ctrl` + `Alt` + `s`
Find and Replace Match whole word	`Ctrl` + `Alt` + `w`
View Increase / decrease text size	`Ctrl` + `Shift` + `=` / `-`
View Reset text size	`Ctrl` + `0` (zero)
View Toggle fullscreen	`F11`
Tree View Toggle focus Tree View	`Ctrl` + `0` (zero)
Tree View Toggle tree view	`Ctrl` + `k` , then `b`
Tree View Select next/previous item	`j` / `k`
Tree View Expand / collapse selected directory	`h` / `l` OR `Arrow Right` / `Arrow Left`
Tree View Recursively expand / collapse directories	`Alt` + `Arrow Left` / `Arrow Right` OR `Ctrl` + `Alt` + `[` / `]`
Tree View Open selected item	`Enter`
Tree View Move selected item	`m` OR `F2`
Tree View Delete current item	`Backspace` OR `Delete`
Tree View Duplicate selected item	`d`
Tree View Open selected item in pane 1 ... 9	`Ctrl` + `1 ... 9`
Tree View Add new file	`a`
Tree View Add new folder	`Shift` + `a`
Tree View Toggle display of VCS ignored files	`i`
Github Integration Open on Github: blame	`Alt` + `g` , then `b`
Github Integration Open on Github: copy-url	`Alt` + `g` , then `c`
Github Integration Open on Github: repository	`Alt` + `g` , then `g`
Github Integration Open on Github: history	`Alt` + `g` , then `h`
Github Integration Open on Github: issues	`Alt` + `g` , then `i`
Github Integration Open on Github: file	`Alt` + `g` , then `o`
Github Integration Open on Github: branch-compare	`Alt` + `g` , then `r`
Manage Diffs Toggle list of diffs in file	`Alt` + `g` , then `d`
Manage Diffs Move to next/previous diff in file	`Alt` + `g` , then `Arrow Down` / `Arrow Up`