In the lists below, the sed commands are grouped by function and are described tersely. Full descriptions, including syntax and examples, can be found afterward in the alphabetical summary.
a\ | Append text after a line. |
c\ | Replace text (usually a text block). |
i\ | Insert text after a line. |
d | Delete lines. |
s | Make substitutions. |
y | Translate characters (like a UNIX tr). |
= | Display line number of a line. |
l | Display control characters in ASCII. |
p | Display the line. |
n | Skip current line and go to line below. |
r | Read another file's contents into the input. |
w | Write input lines to another file. |
q | Quit the sed script (no further output). |
h | Copy into hold space; wipe out what's there. |
H | Copy into hold space; append to what's there. |
g | Get the hold space back; wipe out the destination line. |
G | Get the hold space back; append on line below. |
x | Exchange contents of hold space and pattern space. |
b | Branch to label or to end of script. |
t | Same as b, but branch only after substitution. |
:label | Label branched to by t or b. |
N | Read another line of input (creates embedded newline). |
D | Delete up to the embedded newline. |
P | Print up to the embedded newline. |