sam Editor Reference

This is a blatent rip-off of Steve Simon’s reference card.

Addresses

n,m

Line n to line m

’

Address mark, see k below

.

Correct selection/position

0

Correct selection/position

ˆ

Start of file

$

End of line/file

,

Equivalent to 0,$

Regular Expressions

.

Any character

*

0 or more of previous

+

1 or more of previous

[ˆn]

Correct selection/position

[nm]

n or m

(re)

Tag pattern

#

Substitute #’th tagged pattern

Text Commands

-/re/

Search backward

+/re/

Search forward

/re/

Search in same direction as last

a/text/

Append text after dot

c/text/

Change text in dot

i/text/

Insert text before dot

d

Delete text in dot

s/regexp/text/

Substitute text for regexp in dot

m address

Move dot to after address

t address

Copy dot to after address

Display Commands

p

Print contents of dot

=

Print value of dot

n

Print file menu list

I/O Commands

b file-list

Set current file to first in menu list

B file-list

Same as b, but load new file-list

D file-list

Delete named buffers

e [file-name]

Replace current with file

r file-name

Replace dot by contents of file

w file-name

Write current to named file

f [file-name]

Set current file name

< command

Replace dot by stdout of command

> command

Send dot to stdin of command

| command

Pipe dot through command

! command

Run the command

Loops and Conditionals

x/regexp/ command

Set dot and run command on each match

x cmd

Set dot and run command on each matching line

y/regexp/ command

As x but select unmatched text

X/regexp/ command

Run command on files whose menu line matches

Y/regexp/ command

As X but select unmatched files

g/regexp/ command

If dot contains regexp, run command

v/regexp/ command

If dot does not contain, run command

Miscellany

k

Set address mark to value of dot

q

Quit

u n

Undo last n (default 1) changes

{ }

Braces group commands

<compose> Xnnnn

Insert char xxxx hex (Unix/Plan9)

Alt-nnnn

Insert char xxxx hex (Windows)

Idioms

X/.*/,x/<cr>/d

Strip from all files

x/ˆ/ .,/0d

Strip C comments from selection

‘-/ˆ/+#10`

Goto the 10th colum in the current line

-0+,+0-

Round dot down to whole lines only

,x/ +/ v/ˆ/ c/ /

Compress runs of spaces, leaving indentation

s/"([ˆ"]*)"/‘‘1’’/

Replace “hello” with ‘‘hello’’ in selection

f <nl>

Set current file-name to null

> echo ""

Insert ascii code xxx at current position

, > wc -l

Count lines in file

/text/+-p

Highlight the lines containing <pat>

-/text/

Search for text backwards

$-/text/

Search for the last occurrence of text in file

,x/<text>/+-p

Grep for text

.x/<pat>/ c/<rep>/

Search for <pat> and replace with <rep>

B < echo *.c

Add all the C files in current dir to file list

B < grep -l <pat> *

Add all the files containing <pat> to file list

X/’/w

Write all modified files

Y/.c/D

Remove all non C files from file list

| fmt

Pipe selection through the text formatter

> mail <user>

Send selection as Email to <user>

x/0 a/0

Double space selection

x/ˆ/ a/ /

Indent selection 1 tab

x/ˆ<tab>/d

Remove 1 tab of indent from selection

/(.+0+/

Matches blocks of text separated by blank lines

! date

Get current date in sam window

,< wc

Push file into wc, count appears in sam window

0 < date

Insert date at start of file

1 < date

Replace first line with todays date

X D

Remove out all up-to-date files

,|

Sort sort current file

,x/ˆTODAY$/ < date

Replace TODAY on with the output of date

-/.PP/,/.PP/-

Highlight current paragraph in an nroff doc