Edit text

Functions to add text

You can use the a command to keep appending lines after the current line until you type a line consisting of just a period ("."). You can use the c command to keep typing lines to replace the current line until you type a line consisting of just a period ("."). You can use the i command to keep inserting lines before the current line until you type a line consisting of just a period ("."). Sometimes you just want to append, type, or insert a single line. You can use the a, c, and i functions to append or insert the text that you type after the function name. The functions add text until you type a line that does not end with a backslash ("").

# Append text after the current line.
# usage: <a <text>
# End the line of text with a backslash ("\") to add another line.
function+a {
db0
a
~0
.
s/\\$//f
while(*) {
r !IFS=""; read -r line; echo "$line"
s/\\$//f
}
}

# change (replace)  the text of the current line.
# usage: <c <text>
# End the line of text with a backslash ("\") to add another line.
function+c {
db0
c
~0
.
s/\\$//f
while(*) {
r !IFS=""; read -r line; echo "$line"
s/\\$//f
}
}

# Insert text before the current line.
# usage: <i <text>
# End the line of text with a backslash ("\") to add another line.
function+i {
db0
i
~0
.
s/\\$//f
while(*) {
r !IFS=""; read -r line; echo "$line"
s/\\$//f
}
}

Function to edit the current line with Readline

You can use this simple function to edit the text of the current line with Readline.

# Edit the current line with Readline.
# usage: <el
function+el {
db0
H-
ebvar+
r !bash -c 'IFS=""; read -er -i '. line; echo $line'
-X
if(*) {
d
}
}