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Sed is a stream editor. A stream editor is used to perform basic text transformations on an input stream (a file or input from a pipeline). Sed is similar editors that script edits, but sed only makes one pass over the input(s), and thus is more efficient. But it is sed's ability to filter text in a pipeline which particularly distinguishes it from other types of editors. | Sed is a stream editor. A stream editor is used to perform basic text transformations on an input stream (a file or input from a pipeline). Sed is similar editors that script edits, but sed only makes one pass over the input(s), and thus is more efficient. But it is sed's ability to filter text in a pipeline which particularly distinguishes it from other types of editors. | ||
== Commands == | |||
<code>: label</code> | |||
<code># comment</code> | |||
<code>{....} Block</code> | |||
<code>=</code> print line number | |||
<code>a \</code> Append | |||
<code>b label Branch | |||
<code>c \</code> change | |||
<code>d</code> and <code>D</code> Delete | |||
<code>g</code> and <code>G</code> Get | |||
<code>h</code> and <code>H</code> Hold | |||
<code>i \</code> Insert | |||
<code>l</code> Look | |||
<code>n</code> and <code>N</code> Next | |||
<code>p</code> and <code>P</code> Print | |||
<code>q</code> Quit | |||
<code>r <i>filename</i></code> Read File | |||
<code>s/..../..../</code> Substitute | |||
<code>t label</code> Test | |||
<code>w filename Write Filename | |||
<code>x eXchange | |||
<code>y/..../..../</code> Transform | |||
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<ol> | <ol> | ||
<li>[http://man.he.net/?topic=sed§ion=all sed man page]</li> | |||
<li>[http://www.grymoire.com/Unix/Sed.html Grymoire sed tutorial]</li> | <li>[http://www.grymoire.com/Unix/Sed.html Grymoire sed tutorial]</li> | ||
</ol> | </ol> | ||
Revision as of 16:08, 10 January 2017
Sed is a stream editor. A stream editor is used to perform basic text transformations on an input stream (a file or input from a pipeline). Sed is similar editors that script edits, but sed only makes one pass over the input(s), and thus is more efficient. But it is sed's ability to filter text in a pipeline which particularly distinguishes it from other types of editors.
Commands
: label
# comment
{....} Block
= print line number
a \ Append
b label Branch
c \ change
d and D Delete
g and G Get
h and H Hold
i \ Insert
l Look
n and N Next
p and P Print
q Quit
r filename Read File
s/..../..../ Substitute
t label Test
w filename Write Filename
x eXchange
y/..../..../ Transform
References