Perhaps an example would help you. Suppose you have the following text file
and want to use vi to search and replace all instances of 'b', 'c', 'd' and 'e' with 'Q',
you can do with the following command ":%s/[b-e]/Q/g' which results in
Here is an except from a typical vi man page regarding substitute:
How can you tell how much a Solaris box is swapping? At what point do page in and page out become a problem? Here is a vmstat output.
> vmstat
procs memory page disk faults cpu
r b w swap free re mf pi po fr de sr m0 m1 m2 m3 in sy cs us sy id... (1 Reply)
Hi Guys: Would like to know how to check system swapping and paging and some theory on how they function. I am an oracle dba and my environment is 8171 on AIX 433. We have a 1GB of RAM on the box and I am educating myself to see how much more SGA can be accommodated on the box and what are the... (2 Replies)
Hello!
Why does my SuSE GNU/Linux machine swap?
I have a Gig of ram, currently 14MBs of free RAM, 724MB - buffers and caches...
That is 685MB of cached RAM, then kernel really should'nt have to swap, It should release cached memory in my thinkin...
It has only swaped 3MB's but still,... (3 Replies)
Hi,
I knw its a silly question, but am a newbie to 'vi' editor. I'm forced to use this, hence kindly help me with this question.
How can i paste a chunk 'copied from' a different editor(gedit) in 'vi editor'?
As i see, p & P options does work only within 'vi'. (10 Replies)
Hi All,
I am running a script , working very fine on cmd prompt. The problem is that when I open do crontab -e even after setting editor to vi by
set EDITOR=vi it does not open a vi editor , rather it do as below.....
/////////////////////////////////////////////////////
$ set... (6 Replies)
is there any command in vi editor to turn this
986.000 4.026.000 775.328.625 9.319.003.000
986.000 4.036.000 775.328.625 9.318.803.000
986.000 4.046.000 775.328.625 9.318.603.000
986.000 4.056.000 775.328.625 9.318.403.000
become this... (5 Replies)
Hallo Team,
This is the command that i am running :
grep ",Call Forward Not Reachable" *2013*
this is the output that i am getting (i did a head -10 but the files can be more than 1000)
... (8 Replies)
Hi Guys
I am using SPARC-T4 (chipid 0, clock 2998 MHz), SunOS 5.10 Generic_150400-38 sun4v.
How do I see if the server was doing some swapping like yesterday?
I had a java application error with java.lang.OutOfMemoryError, now I want to check if the server was not doing some swapping at... (4 Replies)
Hi there,
I have a text that I'm trying to format into something more readable. However, I'm stuck in the last step. I've searched and tried things over the internet with no avail.
OS: Mac
After parsing the original text that I won't put here, I managed to get something like this, but this... (8 Replies)
Discussion started by: Kibou
8 Replies
LEARN ABOUT PHP
mb_ereg_replace
MB_EREG_REPLACE(3) 1 MB_EREG_REPLACE(3)mb_ereg_replace - Replace regular expression with multibyte supportSYNOPSIS
string mb_ereg_replace (string $pattern, string $replacement, string $string, [string $option = "msr"])
DESCRIPTION
Scans $string for matches to $pattern, then replaces the matched text with $replacement
PARAMETERS
o $pattern
- The regular expression pattern. Multibyte characters may be used in $pattern.
o $replacement
- The replacement text.
o $string
- The string being checked.
o $option
- Matching condition can be set by $option parameter. If i is specified for this parameter, the case will be ignored. If x is
specified, white space will be ignored. If m is specified, match will be executed in multiline mode and line break will be
included in '.'. If p is specified, match will be executed in POSIX mode, line break will be considered as normal character. If e
is specified, $replacement string will be evaluated as PHP expression.
RETURN VALUES
The resultant string on success, or FALSE on error.
NOTES
Note
The internal encoding or the character encoding specified by mb_regex_encoding(3) will be used as the character encoding for this
function.
Warning
Never use the e modifier when working on untrusted input. No automatic escaping will happen (as known from preg_replace(3)). Not
taking care of this will most likely create remote code execution vulnerabilities in your application.
SEE ALSO mb_regex_encoding(3), mb_eregi_replace(3).
PHP Documentation Group MB_EREG_REPLACE(3)