terminal

[!NOTE]

terminal info

references:

  • list info
    $ terminfo -f
$ terminfo -W

reset terminal

[!NOTE]

$ stty sane
# or
$ stty echo

# or
$ reset
# or
$ tset

tput

[!NOTE]

CAPNAME DESCRIPTION
sc Save the cursor position
rc Restore the cursor position
home Move the cursor to upper left corner (0,0)
cup <row> <col> Move the cursor to position row, col
cud1 Move the cursor down 1 line
cuu1 Move the cursor up 1 line
civis Set to cursor to be invisible
cnorm Set the cursor to its normal state
CAPNAME DESCRIPTION
bold Start bold text
smul Start underlined text
rmul End underlined text
rev Start reverse video
blink Start blinking text
invis Start invisible text
smso Start “standout” mode
rmso End “standout” mode
sgr0 Turn off all attributes
setaf <value> Set foreground color
setab <value> Set background color
VALUE COLOR
0 Black
1 Red
2 Green
3 Yellow
4 Blue
5 Magenta
6 Cyan
7 White
8 Not used
9 Reset to default color
CAPNAME DESCRIPTION
smcup Save screen contents
rmcup Restore screen contents
el Clear from the cursor to the end of the line
el1 Clear from the cursor to the beginning of the line
ed Clear from the cursor to the end of the screen
clear Clear the entire screen and home the cursor
  • cursor action:
Name Termcap Equiv. Description
civis vi Make cursor invisible
cvvis vs Make cursor very visible
cnorm ve Make cursor normal (undo cvvis' &civis)'
cuf RI Move cursor right #1 spaces (P*)
cuf1 nd Move cursor right one space
cub LE Move cursor left #1 spaces (P)
cub1 le Move cursor left one space
cuu UP Move cursor up #1 lines (P*)
cuu1 up Move cursor up one line
cud DO Move cursor down #1 lines (P*)
cud1 do Move cursor down one line
cup cm Move cursor to row #1, column #2 of screen (P)
mrcup CM Move cursor to row #1, column #2 of memory (P)
vpa cv Move cursor to row #1 (P)
hpa ch Move cursor to column #1 (P)
home ho Home cursor (if no `cup')
hd hd Move cursor down one-half line
hu hu Move cursor up one-half line
sc sc Save cursor position
rc rc Restore cursor to position of last `sc'
sgr0 me Turn off all attributes
ll ll Go to last line, first column (if no cup)

  • move sequence to top

    $ tput home
# or
$ tput cup 0 0
# or
$ tput cup %py %px >/dev/tty

  • show info

    $ tput -T screen longname
VT 100/ANSI X3.64 virtual terminal

$ tput longname
xterm with 256 colors

$ echo "Rows=$(tput lines) Cols=$(tput cols)"
Rows=30 Cols=104

  • set cursor

    # invisible
$ tput civis
# normal
$ tput cnorm

  • text color

    for fg_color in {0..255}; do
  set_foreground=$(tput setaf $fg_color)
  for bg_color in {0..7}; do
      set_background=$(tput setab $bg_color)
      echo -n $set_background$set_foreground
      printf ' F:%s B:%s ' $fg_color $bg_color
  done
  echo $(tput sgr0)
done

    • PS1

      [!NOTE|label:references:]

      red=$(tput setaf 1)
green=$(tput setaf 2)
blue=$(tput setaf 4)
reset=$(tput sgr0)
PS1='\[$red\]\u\[$reset\]@\[$green\]\h\[$reset\]:\[$blue\]\w\[$reset\]\$ '

  • shows tput processing in one invocation

    $ tput -S <<!
  clear
  cup 10 10
  bold
  !

# or
$ tput -S <<EOF
  sc
  cup $line $column
  rev
  EOF
%p1%d;%p2%dH

  • print in center of line

    COLUMNS=`tput cols` export COLUMNS # Get screen width.
echo "$@" | awk '
{ spaces = ('$COLUMNS' - length) / 2
  while (spaces-- > 0) printf (" ")
  print
}'

  • print in center of terminal

    COLUMNS=`tput cols`
LINES=`tput lines`
line=`expr $LINES / 2`
column=`expr \( $COLUMNS - 6 \) / 2`
tput sc
tput cup $line $column
tput rev
echo 'Hello, World'
tput sgr0
tput rc

  • tput_menu : script for clean screen

    tput-menu
    BG_BLUE="$(tput setab 4)"
BG_BLACK="$(tput setab 0)"
FG_GREEN="$(tput setaf 2)"
FG_WHITE="$(tput setaf 7)"

# save screen
tput smcup

# display menu until selection == 0
while [[ $REPLY != 0 ]]; do
  echo -n ${BG_BLUE}${FG_WHITE}
  clear
  cat <<- _EOF_
    Please Select:

    1. Display Hostname and Uptime
    2. Display Disk Space
    3. Display Home Space Utilization
    0. Quit

_EOF_

  read -p "Enter selection [0-3] > " selection

  # clear area beneath menu
  tput cup 10 0
  echo -n ${BG_BLACK}${FG_GREEN}
  tput ed
  tput cup 11 0

  # act on selection
  case $selection in
    1)  echo "Hostname: $HOSTNAME"
        uptime
        ;;
    2)  df -h
        ;;
    3)  if [[ $(id -u) -eq 0 ]]; then
          echo "Home Space Utilization (All Users)"
          du -sh /home/* 2> /dev/null
        else
          echo "Home Space Utilization ($USER)"
          du -s $HOME/* 2> /dev/null | sort -nr
        fi
        ;;
    0)  break
        ;;
    *)  echo "Invalid entry."
        ;;
  esac
  printf "\n\npress any key to continue."
  read -n 1
done

# restore screen
tput rmcup
echo "Program terminated."

  • now

    [!NOTE]

    now date time
    1.8.3.1 -- now date time
    show now
    #!/usr/bin/env bash

dataColumn=1
timeColumn=27
tput sc                    # save cursor position.

#--------- DATE -------------------------------------------------------------
tput rc                    # restore saved cursor position.
cal | tr -cd '\11\12\15\40\60-\136\140-\176' > /tmp/terminal

calLineCnt=1
Today=$(date +"%e")

printf "\033[32m"           # color green -- see list above.

while IFS= read -r Cal; do
  printf "%s" "$Cal"
  if [[ $calLineCnt -gt 2 ]] ; then
    tput cub 22                   # see if today is on current line & invert background
    for (( j=0 ; j <= 18 ; j += 3 )) ; do
      Test=${Cal:$j:2}            # Current day on calendar line
      if [[ "$Test" == "$Today" ]] ; then
        printf "\033[7m"          # reverse: [7m
        printf "%s" "$Today"
        printf "\033[0m"          # normal: [0m
        printf "\033[32m"         # color green -- see list above.
        tput cuf 1
      else
        tput cuf 3
      fi
    done
  fi

  tput cud1                 # down one line
  tput cuf $dataColumn      # move 27 columns right
  calLineCnt=$((++calLineCnt))
done < /tmp/terminal

printf "\033[00m"           # color -- bright white (default)
echo ""

tput rc                     # restore saved cursor position.

#-------- TIME --------------------------------------------------------------

tput sc                     # save cursor position.
tput cuu 7                  # move up 9 lines
tput cuf $timeColumn        # move 49 columns right

if hash toilet 2>/dev/null; then                          # if has toilet
   date +"%I:%M %P" | toilet -f future  > /tmp/terminal
elif hash figlet 2>/dev/null; then                        # if has figlet
   date +"%I:%M %P" | figlet > /tmp/terminal
else
   date +"%I:%M %P" > /tmp/terminal
fi

while IFS= read -r Time; do
  printf "\033[01;36m"    # color cyan
  printf "%s" "$Time"
  tput cud1               # Up one line
  tput cuf $timeColumn    # Move 49 columns right
done < /tmp/terminal

tput rc                     # Restore saved cursor position.

exit 0

stty

[!NOTE|label:references:]

OPTION COMMENTS
echo Echoes every character typed.
-echo Does not echo characters.
echoctl Echoes control characters as ^X (Ctrl-X), where X is the character given by adding 100 octal to the code of the control character.
-echoctl Does not echo control characters as ^X (Ctrl-X).
echoe Echoes the ERASE character as the "backspace space backspace" string.
-echoe Does not echo the ERASE character, just backspace.
echok Echoes a NL character after a KILL character.
-echok Does not echo a NL character after a KILL character.
echoke Echoes the KILL character by erasing each character on the output line.
-echoke Just echoes the KILL character.
echonl Echoes the NL character.
-echonl Does not echo the NL character.
echoprt Echoes erased characters backwards with / (slash) and \ (backslash).
-echoprt Does not echo erased characters backwards with / (slash) and \ (backslash).
icanon Enables canonical input (canonical input allows input-line editing with the ERASE and KILL characters). See the discussion about canonical mode input in Line Discipline Module (ldterm) AIX Version 4.3 Communications Programming Concepts.
-icanon Disables canonical input.
iexten Specifies that implementation-defined functions shall be recognized from the input data. Recognition of the following control characters requires iexten to be set: eol2, dsusp, reprint, discard, werase, lnext. The functions associated with these modes also require iexten to be set: imaxbel, echoke, echoprt, and echoctl.
-iexten Specifies that implementation-defined functions shall not be recognized from the input data.
isig Enables the checking of characters against the special control characters INTR, SUSP and QUIT special control characters.
-isig Disables the checking of characters against the special control characters INTR, SUSP and QUIT special control characters.
noflsh Does not clear buffers after INTR, SUSP, or QUIT control characters.
-noflsh Clears buffers after INTR, SUSP, or QUIT control characters.
pending Causes any input that is pending after a switch from raw to canonical mode to be re-input the next time a read operation becomes pending or the next time input arrives. Pending is an internal state bit.
-pending No text is pending.
tostop Signals SIGTOU for background output.
-tostop Does not signal SIGTOU for background output.
xcase Echoes uppercase characters on input, and displays uppercase characters on output with a preceding \ (backslash).
-xcase Does not echo uppercase characters on input.

  • show all

    $ stty -a
speed 38400 baud; rows 30; columns 104;
intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = <undef>; eol2 = <undef>; start = ^Q;
stop = ^S; susp = ^Z; dsusp = ^Y; rprnt = ^R; werase = ^W; lnext = ^V; discard = ^O; status = ^T;
min = 1; time = 0;
-parenb -parodd cs8 hupcl -cstopb cread -clocal -crtscts
-ignbrk brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl -ixon ixoff ixany imaxbel iutf8
opost -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0
isig icanon iexten echo echoe echok -echonl -noflsh -tostop -echoprt echoctl echoke -flusho -extproc

  • show size

    $ stty size
30 104

  • enable/disable echo

    $ stty echo    # or stty sane
$ stty -echo

tty ( teletypewriter )

[!NOTE|label:references:]

tabs

[!NOTE|label:references]

Copyright © marslo 2020-2023 all right reserved，powered by GitbookLast Modified: 2024-05-16 01:41:37

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