You can make your shell history more useful by removing the typos and false starts.
  • vort3@lemmy.ml
    291·
    2 days ago

    I comment the commands that I want and then use vim to remove ones without comments.

    For example, I run:

    longandannoyingcommand -f1 -f2 -f3 # keep, does something useful

    Usually comment explains what the command does so I can find it by description using fzf history search. And then you can easily find all lines that contain (or do not contain “# keep”) in your history to remove or keep.

    • grrgyle@slrpnk.net
      7·
      1 day ago

      We are same. I sometimes use comments as kind of tags, like

      xinput --disable $(xinput --list | grep -i touchpad | grep 'id=[0-9]\+' -o | cut -d= -f2)  # Disable synaptic touchpad trackpad pointer

      or

      python3 -c 'from ctypes import *; X11 = cdll.LoadLibrary("libX11.so.6"); X11.XOpenDisplay.restype = POINTER(c_ubyte); display = X11.XOpenDisplay(None); X11.XkbLockModifiers(display, c_uint(0x0100), c_uint(2), c_uint(0)); X11.XCloseDisplay(display)' # swap caps CAPS CAPSLOCK

      or sometimes I’ll add # works at the end of a long string of attempts (usually involving dialing into a regexp), like

      xdpyinfo|grep dimensions|grep -Eow '\d'
xdpyinfo|grep dimensions|grep -Eow '(\d)'
xdpyinfo|grep dimensions|grep -ow '(\d)'
xdpyinfo|grep dimensions|grep -o '(\d)'
xdpyinfo|grep dimensions
xdpyinfo|grep dimensions|grep '1920x1080'
xdpyinfo|grep dimensions|grep -o '1920x1080'
xdpyinfo|grep dimensions|grep -o '\d920x1080'
xdpyinfo|grep dimensions|grep -Po '\d920x1080'
xdpyinfo|grep dimensions|grep -Po '\d+x1080'
xdpyinfo|grep dimensions|grep -Po '\d+x\d+'
xdpyinfo|grep dimensions|grep -Po '(\d+x\d+)'
xdpyinfo|grep dimensions|grep -Po '(\d+x\d+) pixels'
xdpyinfo|grep dimensions|grep -Po '(\d+x\d+) pixels'|cut
xdpyinfo|grep dimensions|grep -Po '(\d+x\d+) pixels'|cut -f1
xdpyinfo|grep dimensions|grep -Po '(\d+x\d+) pixels'|cut -d\ -f1
xdpyinfo|grep dimensions|grep -Po '(\d+x\d+) pixels'|cut -d'' -f1
scrot --quality 1 --compression 0 --format jpg - | convert -scale 10% -scale 1000% -quality 100 - RGB:- | i3lock --image /dev/stdin --raw 3840x1818:rgb --nofork
xdpyinfo|grep dimensions|grep -Po '(\d+x\d+) pixels'|cut -d' ' -f1
xdpyinfo|grep dimensions|grep -Po '(\d+x\d+) pixels'|cut -d' ' -f1 # works