This is a draft cheat sheet. It is a work in progress and is not finished yet.
Command Line
^a |
Start of command line |
^e |
End of command line |
^u |
Delete line |
^k |
Delete forward to end of line |
^w |
Delete previous word |
^t |
Swap previous and current character |
Process Manipulation
^d |
Exit shell |
^l |
Clear screen |
^c |
Kill process |
^z |
Suspend process |
bg |
Continue process in backgroup |
fg |
Restore process to foreground |
^s |
Pause terminal output |
^q |
Resume terminal output |
|
|
Command History
!! |
Previous command line (i.e. !-1) |
!foo |
Most recent command line starting with foo |
!?foo |
Most recent command line containing foo |
!* |
All arguments of previous command |
!^ |
First argument of previous command |
!$ |
Last argument of previous command |
^foo^bar |
Replace foo with bar in previous command |
!n |
nth command line in history |
!-n |
nth command line from current one |
|
|
regex Characters
Expression |
Explanation |
Example |
Match |
\d |
One digit |
1\d3 |
123 |
\w |
One character |
f\wo |
foo |
\s |
One space (space, tab, newline, carriage return) |
abc\s123 |
abc 123 |
\D |
One character NOT a digit |
b\Dr |
bar |
\W |
One character NOT a word character |
4\W6 |
456 |
\S |
One character NOT a space |
a\Sc 1\S3 |
abc 123 |
. |
Any character |
a.c.1.3 |
abc 123 |
\ |
Escapes a special character |
\[\.*\] |
[.*] |
\t \n \r |
tab, linefeed, carriage return |
\r\n |
Line separator on Windows |
Quantifiers |
* |
Zero or more (greedy) |
fob |
foo |
+ |
One or more (greedy) |
f+ |
foo |
? |
One or none (lazy) |
fool? |
foo |
{3} |
Exactly three time |
\w{3} |
foo |
{2,4} |
Two to four times (greedy) |
\D{2,4} |
foo |
{2,} |
Two or more times (greedy) |
.{2,} |
foo |
Logic |
| |
OR |
foo|bar |
foo |
"lazy" means match the smallest amount. "greedy" means match the largest amount. \d+ matches x123x while \d* matches x123x
|
