    root 0x162, subw 0x0, time 12238633, (258,286), root:(341,383),
    state 0x10, keycode 95 (keysym 0xffc8, F11), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyPress event, serial 33, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12239833, (258,286), root:(341,383),
    state 0x10, keycode 82 (keysym 0xffad, KP_Subtract), same_screen YES,
    XLookupString gives 1 bytes: (2d) "-"
    XmbLookupString gives 1 bytes: (2d) "-"
    XFilterEvent returns: False

KeyRelease event, serial 33, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12240041, (258,286), root:(341,383),
    state 0x10, keycode 82 (keysym 0xffad, KP_Subtract), same_screen YES,
    XLookupString gives 1 bytes: (2d) "-"
    XFilterEvent returns: False

KeyPress event, serial 33, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12241057, (258,286), root:(341,383),
    state 0x10, keycode 86 (keysym 0xffab, KP_Add), same_screen YES,
    XLookupString gives 1 bytes: (2b) "+"
    XmbLookupString gives 1 bytes: (2b) "+"
    XFilterEvent returns: False

KeyRelease event, serial 33, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12241241, (258,286), root:(341,383),
    state 0x10, keycode 86 (keysym 0xffab, KP_Add), same_screen YES,
    XLookupString gives 1 bytes: (2b) "+"
    XFilterEvent returns: False

EnterNotify event, serial 33, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12255923, (2,47), root:(85,144),
    mode NotifyNormal, detail NotifyAncestor, same_screen YES,
    focus YES, state 16

KeymapNotify event, serial 33, synthetic NO, window 0x0,
    keys:  98  0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   
           0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   

MotionNotify event, serial 33, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12255923, (2,47), root:(85,144),
    state 0x10, is_hint 0, same_screen YES

MotionNotify event, serial 33, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12255931, (4,39), root:(87,136),
    state 0x10, is_hint 0, same_screen YES

MotionNotify event, serial 33, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12255939, (8,23), root:(91,120),
    state 0x10, is_hint 0, same_screen YES

LeaveNotify event, serial 33, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12255947, (14,11), root:(97,108),
    mode NotifyNormal, detail NotifyInferior, same_screen YES,
    focus YES, state 16

MotionNotify event, serial 33, synthetic NO, window 0x3600001,
    root 0x162, subw 0x3600002, time 12255947, (14,11), root:(97,108),
    state 0x10, is_hint 0, same_screen YES

EnterNotify event, serial 33, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12255955, (19,6), root:(102,103),
    mode NotifyNormal, detail NotifyInferior, same_screen YES,
    focus YES, state 16

KeymapNotify event, serial 33, synthetic NO, window 0x0,
    keys:  98  0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   
           0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   

MotionNotify event, serial 33, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12255955, (19,6), root:(102,103),
    state 0x10, is_hint 0, same_screen YES

MotionNotify event, serial 33, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12255963, (20,4), root:(103,101),
    state 0x10, is_hint 0, same_screen YES

MotionNotify event, serial 33, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12255987, (23,1), root:(106,98),
    state 0x10, is_hint 0, same_screen YES

MotionNotify event, serial 33, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12255995, (24,0), root:(107,97),
    state 0x10, is_hint 0, same_screen YES

LeaveNotify event, serial 33, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12256003, (26,-4), root:(109,93),
    mode NotifyNormal, detail NotifyAncestor, same_screen YES,
    focus YES, state 16

ClientMessage event, serial 33, synthetic YES, window 0x3600001,
    message_type 0x12e (WM_PROTOCOLS), format 32, message 0x12c (WM_DELETE_WINDOW)
pavel@pavel-desktop:~$ cls
No command 'cls' found, but there are 19 similar ones
cls: command not found
pavel@pavel-desktop:~$ clear

pavel@pavel-desktop:~$ xev
Outer window is 0x3600001, inner window is 0x3600002

PropertyNotify event, serial 8, synthetic NO, window 0x3600001,
    atom 0x27 (WM_NAME), time 12345439, state PropertyNewValue

PropertyNotify event, serial 9, synthetic NO, window 0x3600001,
    atom 0x22 (WM_COMMAND), time 12345439, state PropertyNewValue

PropertyNotify event, serial 10, synthetic NO, window 0x3600001,
    atom 0x28 (WM_NORMAL_HINTS), time 12345439, state PropertyNewValue

CreateNotify event, serial 11, synthetic NO, window 0x3600001,
    parent 0x3600001, window 0x3600002, (10,10), width 50, height 50
border_width 4, override NO

PropertyNotify event, serial 14, synthetic NO, window 0x3600001,
    atom 0x12e (WM_PROTOCOLS), time 12345440, state PropertyNewValue

MapNotify event, serial 15, synthetic NO, window 0x3600001,
    event 0x3600001, window 0x3600002, override NO

ConfigureNotify event, serial 18, synthetic NO, window 0x3600001,
    event 0x3600001, window 0x3600001, (0,0), width 178, height 178,
    border_width 0, above 0x3400a63, override NO

PropertyNotify event, serial 18, synthetic NO, window 0x3600001,
    atom 0x192 (_NET_WM_ALLOWED_ACTIONS), time 12345441, state PropertyNewValue

PropertyNotify event, serial 18, synthetic NO, window 0x3600001,
    atom 0x192 (_NET_WM_ALLOWED_ACTIONS), time 12345441, state PropertyNewValue

ReparentNotify event, serial 18, synthetic NO, window 0x3600001,
    event 0x3600001, window 0x3600001, parent 0x1c86993,
    (0,0), override NO

PropertyNotify event, serial 18, synthetic NO, window 0x3600001,
    atom 0x136 (_NET_WM_DESKTOP), time 12345442, state PropertyNewValue

PropertyNotify event, serial 18, synthetic NO, window 0x3600001,
    atom 0x136 (_NET_WM_DESKTOP), time 12345442, state PropertyNewValue

PropertyNotify event, serial 18, synthetic NO, window 0x3600001,
    atom 0x133 (_NET_FRAME_EXTENTS), time 12345442, state PropertyNewValue

ConfigureNotify event, serial 18, synthetic NO, window 0x3600001,
    event 0x3600001, window 0x3600001, (4,24), width 178, height 178,
    border_width 0, above 0x0, override NO

PropertyNotify event, serial 18, synthetic NO, window 0x3600001,
    atom 0x122 (WM_STATE), time 12345442, state PropertyNewValue

PropertyNotify event, serial 18, synthetic NO, window 0x3600001,
    atom 0x13c (_NET_WM_STATE), time 12345442, state PropertyNewValue

PropertyNotify event, serial 18, synthetic NO, window 0x3600001,
    atom 0x123 (XKLAVIER_STATE), time 12345447, state PropertyNewValue

ConfigureNotify event, serial 18, synthetic YES, window 0x3600001,
    event 0x3600001, window 0x3600001, (2,71), width 178, height 178,
    border_width 2, above 0x0, override NO

MapNotify event, serial 18, synthetic NO, window 0x3600001,
    event 0x3600001, window 0x3600001, override NO

VisibilityNotify event, serial 18, synthetic NO, window 0x3600001,
    state VisibilityUnobscured

Expose event, serial 18, synthetic NO, window 0x3600001,
    (0,0), width 178, height 10, count 3

Expose event, serial 18, synthetic NO, window 0x3600001,
    (0,10), width 10, height 58, count 2

Expose event, serial 18, synthetic NO, window 0x3600001,
    (68,10), width 110, height 58, count 1

Expose event, serial 18, synthetic NO, window 0x3600001,
    (0,68), width 178, height 110, count 0

PropertyNotify event, serial 18, synthetic NO, window 0x3600001,
    atom 0x13c (_NET_WM_STATE), time 12345448, state PropertyNewValue

FocusIn event, serial 18, synthetic NO, window 0x3600001,
    mode NotifyNormal, detail NotifyNonlinear

KeymapNotify event, serial 18, synthetic NO, window 0x0,
    keys:  4294967175 0   0   0   16  0   0   0   0   0   0   0   0   0   0   0   

           0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   

PropertyNotify event, serial 18, synthetic NO, window 0x3600001,
    atom 0x13c (_NET_WM_STATE), time 12345449, state PropertyNewValue

PropertyNotify event, serial 29, synthetic NO, window 0x3600001,
    atom 0x193 (_NET_WM_ICON_GEOMETRY), time 12345511, state PropertyNewValue

KeyRelease event, serial 30, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12345536, (130,871), root:(134,944),
    state 0x10, keycode 36 (keysym 0xff0d, Return), same_screen YES,
"   XLookupString gives 1 bytes: (0d) "
    XFilterEvent returns: False

MappingNotify event, serial 33, synthetic NO, window 0x0,
    request MappingKeyboard, first_keycode 8, count 248

KeyPress event, serial 33, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12364233, (130,871), root:(134,944),
    state 0x10, keycode 64 (keysym 0xffe9, Alt_L), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyPress event, serial 34, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12364385, (130,871), root:(134,944),
    state 0x18, keycode 27 (keysym 0x72, r), same_screen YES,
    XLookupString gives 1 bytes: (72) "r"
    XmbLookupString gives 1 bytes: (72) "r"
    XFilterEvent returns: False

KeyRelease event, serial 34, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12364537, (130,871), root:(134,944),
    state 0x18, keycode 64 (keysym 0xffe9, Alt_L), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyRelease event, serial 34, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12364537, (130,871), root:(134,944),
    state 0x10, keycode 27 (keysym 0x72, r), same_screen YES,
    XLookupString gives 1 bytes: (72) "r"
    XFilterEvent returns: False

KeyPress event, serial 34, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12378073, (130,871), root:(134,944),
    state 0x10, keycode 71 (keysym 0xffc2, F5), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyRelease event, serial 34, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12378265, (130,871), root:(134,944),
    state 0x10, keycode 71 (keysym 0xffc2, F5), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyPress event, serial 34, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12380601, (130,871), root:(134,944),
    state 0x10, keycode 37 (keysym 0xffe3, Control_L), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyPress event, serial 34, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12380745, (130,871), root:(134,944),
    state 0x14, keycode 32 (keysym 0x6f, o), same_screen YES,
    XLookupString gives 1 bytes: (0f) ""
    XmbLookupString gives 1 bytes: (0f) ""
    XFilterEvent returns: False

KeyRelease event, serial 34, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12380897, (130,871), root:(134,944),
    state 0x14, keycode 37 (keysym 0xffe3, Control_L), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyRelease event, serial 34, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12380897, (130,871), root:(134,944),
    state 0x10, keycode 32 (keysym 0x6f, o), same_screen YES,
    XLookupString gives 1 bytes: (6f) "o"
    XFilterEvent returns: False

KeyPress event, serial 34, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12383281, (130,871), root:(134,944),
    state 0x10, keycode 49 (keysym 0x60, grave), same_screen YES,
    XLookupString gives 1 bytes: (60) "`"
    XmbLookupString gives 1 bytes: (60) "`"
    XFilterEvent returns: False

KeyRelease event, serial 34, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12383497, (130,871), root:(134,944),
    state 0x10, keycode 49 (keysym 0x60, grave), same_screen YES,
    XLookupString gives 1 bytes: (60) "`"
    XFilterEvent returns: False

KeyPress event, serial 34, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12384425, (130,871), root:(134,944),
    state 0x10, keycode 9 (keysym 0xff1b, Escape), same_screen YES,
    XLookupString gives 1 bytes: (1b) ""
    XmbLookupString gives 1 bytes: (1b) ""
    XFilterEvent returns: False

KeyRelease event, serial 34, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12384609, (130,871), root:(134,944),
    state 0x10, keycode 9 (keysym 0xff1b, Escape), same_screen YES,
    XLookupString gives 1 bytes: (1b) ""
    XFilterEvent returns: False

KeyPress event, serial 34, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12388017, (130,871), root:(134,944),
    state 0x10, keycode 76 (keysym 0xffc7, F10), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyRelease event, serial 34, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12388185, (130,871), root:(134,944),
    state 0x10, keycode 76 (keysym 0xffc7, F10), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyPress event, serial 34, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12388825, (130,871), root:(134,944),
    state 0x10, keycode 95 (keysym 0xffc8, F11), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyRelease event, serial 34, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12389009, (130,871), root:(134,944),
    state 0x10, keycode 95 (keysym 0xffc8, F11), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyPress event, serial 34, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12389993, (130,871), root:(134,944),
    state 0x10, keycode 82 (keysym 0xffad, KP_Subtract), same_screen YES,
    XLookupString gives 1 bytes: (2d) "-"
    XmbLookupString gives 1 bytes: (2d) "-"
    XFilterEvent returns: False

KeyRelease event, serial 34, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12390209, (130,871), root:(134,944),
    state 0x10, keycode 82 (keysym 0xffad, KP_Subtract), same_screen YES,
    XLookupString gives 1 bytes: (2d) "-"
    XFilterEvent returns: False

KeyPress event, serial 34, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12391017, (130,871), root:(134,944),
    state 0x10, keycode 86 (keysym 0xffab, KP_Add), same_screen YES,
    XLookupString gives 1 bytes: (2b) "+"
    XmbLookupString gives 1 bytes: (2b) "+"
    XFilterEvent returns: False

KeyRelease event, serial 34, synthetic NO, window 0x3600001,
    root 0x162, subw 0x0, time 12391201, (130,871), root:(134,944),
    state 0x10, keycode 86 (keysym 0xffab, KP_Add), same_screen YES,
    XLookupString gives 1 bytes: (2b) "+"
    XFilterEvent returns: False

