doc/usage/cmd/history.rst

   1 .. SPDX-License-Identifier: GPL-2.0+:
   2
   3 .. index::
   4    single: history (command)
   5
   6 history command
   7 ===============
   8
   9 Synopis
  10 -------
  11
  12 ::
  13
  14     history
  15
  16 Description
  17 -----------
  18
  19 The *history* command shows a list of previously entered commands on the
  20 command line. When U-Boot starts, this it is initially empty. Each new command
  21 entered is added to the list.
  22
  23 Normally these commands can be accessed by pressing the `up arrow` and
  24 `down arrow` keys, which cycle through the list. The `history` command provides
  25 a simple way to view the list.
  26
  27 Example
  28 -------
  29
  30 This example shows entering three commands, then `history`. Note that `history`
  31 itself is added to the list.
  32
  33 ::
  34
  35     => bootflow scan -l
  36     Scanning for bootflows in all bootdevs
  37     Seq  Method       State   Uclass    Part  Name                      Filename
  38     ---  -----------  ------  --------  ----  ------------------------  ----------------
  39     Scanning global bootmeth 'firmware0':
  40     Hunting with: simple_bus
  41     Found 2 extension board(s).
  42     Scanning bootdev 'mmc2.bootdev':
  43     Scanning bootdev 'mmc1.bootdev':
  44       0  extlinux     ready   mmc          1  mmc1.bootdev.part_1       /extlinux/extlinux.conf
  45     No more bootdevs
  46     ---  -----------  ------  --------  ----  ------------------------  ----------------
  47     (1 bootflow, 1 valid)
  48     => bootflow select 0
  49     => bootflow info
  50     Name:      mmc1.bootdev.part_1
  51     Device:    mmc1.bootdev
  52     Block dev: mmc1.blk
  53     Method:    extlinux
  54     State:     ready
  55     Partition: 1
  56     Subdir:    (none)
  57     Filename:  /extlinux/extlinux.conf
  58     Buffer:    aebdea0
  59     Size:      253 (595 bytes)
  60     OS:        Fedora-Workstation-armhfp-31-1.9 (5.3.7-301.fc31.armv7hl)
  61     Cmdline:   (none)
  62     Logo:      (none)
  63     FDT:       <NULL>
  64     Error:     0
  65     => history
  66     bootflow scan -l
  67     bootflow select 0
  68     bootflow info
  69     history
  70     =>