That's quite an array of very different results. If I were aiming for portability (which I usually am), I'd probably use the old standby sed:
Code:
#!/usr/dt/bin/dtksh
#!/usr/bin/ksh -
#!/usr/xpg4/bin/sh -
#!/bin/ksh -
#!/bin/bash -
# @(#) s2 Demonstrate pattern matching in dtksh and sed.
echo "(Versions displayed with local utility \"version\")"
version >/dev/null 2>&1 && version =o $(_eat $0 $1)
var='Regular expressions rules!'
echo
echo " Replace e with _:"
echo ${var//e/_}
echo
echo " Replace everything except e with _:"
echo re ${var//!(e)/_}
echo fe ${var//[!e]/_}
echo
echo " Replace everything except e with _ using sed:"
echo "$var" | sed -e 's|[^e]|_|g'
exit 0
Producing:
Code:
$ ./s2
(Versions displayed with local utility "version")
SunOS 5.10
dtksh M-12/28/93d
Replace e with _:
R_gular _xpr_ssions rul_s!
Replace everything except e with _:
re _
fe _e______e___e__________e__
Replace everything except e with _ using sed:
_e______e___e__________e__
The re and fe above are regular expressions and filename expressions, intended to show the different syntax, and how one works and the other does not.
I got something out of this, namely dtksh, thanks to Perderabo. It's a bit tricky to find. I think it also carries a very large load of graphical baggage -- sort of like Tk (tcl/Tk). I dug through my very old pile of books, finding this:
Hi,
I have file 1.txt with following entries as shown:
0152364|134444|10.20.30.40|015236433
0233654|122555|10.20.30.50|023365433
**
**
**
In file 2.txt I have the following entries as shown:
0152364|134444|10.20.30.40|015236433
0233654|122555|10.20.30.50|023365433... (4 Replies)
Hi all,
I'm looking for some help. I have a file (very long) that is organized like below:
>Cluster 0
0 283nt, >01_FRYJ6ZM12HMXZS... at +/99%
1 279nt, >01_FRYJ6ZM12HN12A... at +/99%
2 281nt, >01_FRYJ6ZM12HM4TS... at +/99%
3 283nt, >01_FRYJ6ZM12HM946... at +/99%
4 279nt,... (4 Replies)
All,
I have the following file:
--------------------------------------
#
# /etc/pam.d/common-password - password-related modules common to all services
#
# This file is included from other service-specific PAM config files,
# and should contain a list of modules that define the services... (2 Replies)
I figured this would be simple, but I am stuck.
Variable longpath="/dir1/dir2/dir3/filename.stuff.morestuff.garbage"
I want to end up with just "filename.extra.moreextra". So, I want to get rid of the path and .garbage
I want to do this with just ksh internals. So, no sed,grep,awk,expr,... (4 Replies)
Hi,
I am trying to get a result out of this but fails please help. Have two files /tmp/1 & /tmp/hosts.
/tmp/1
IP=123.456.789.01
WAS_HOSTNAME=abcdefgh.was.tb.dsdc
/tmp/hosts
123.456.789.01
I want this result in /tmp/hosts if hostname is already there dont want duplicate entry.
... (5 Replies)
'Hi
I'm using the following code to extract the lines(and redirect them to a txt file) after the pattern match. But the output is inclusive of the line with pattern match.
Which option is to be used to exclude the line containing the pattern?
sed -n '/Conn.*User/,$p' > consumers.txt (11 Replies)
The sample file:
dept1: user1,user2,user3
dept2: user4,user5,user6
dept3: user7,user8,user9
I want to match by '/^dept2.*/' but don't want to have substring 'dept2:' in output. How to compose such regex? (8 Replies)
Hi all!
Thanks for taking the time to view this!
I want to grep out all lines of a file that starts with pattern 1 but also does not match with the second pattern.
Example:
Drink a soda
Eat a banana
Eat multiple bananas
Drink an apple juice
Eat an apple
Eat multiple apples
I... (8 Replies)
Hi
I need to do a patten match between files .
I am new to shell scripting and have come up with this so far. It take 50 seconds to process files of 2mb size . I need to tune this code as file size will be around 50mb and need to save time.
Main issue is that I need to search the pattern from... (2 Replies)
Discussion started by: nitin_daharwal
2 Replies
LEARN ABOUT PHP
boolval
BOOLVAL(3) 1 BOOLVAL(3)boolval - Get the boolean value of a variableSYNOPSIS
boolean boolval (mixed $var)
DESCRIPTION
Returns the boolean value of $var.
PARAMETERS
o $var
- The scalar value being converted to a boolean.
RETURN VALUES
The boolean value of $var.
EXAMPLES
Example #1
boolval(3) examples
<?php
echo '0: '.(boolval(0) ? 'true' : 'false')."
";
echo '42: '.(boolval(42) ? 'true' : 'false')."
";
echo '0.0: '.(boolval(0.0) ? 'true' : 'false')."
";
echo '4.2: '.(boolval(4.2) ? 'true' : 'false')."
";
echo '"": '.(boolval("") ? 'true' : 'false')."
";
echo '"string": '.(boolval("string") ? 'true' : 'false')."
";
echo '"0": '.(boolval("0") ? 'true' : 'false')."
";
echo '"1": '.(boolval("1") ? 'true' : 'false')."
";
echo '[1, 2]: '.(boolval([1, 2]) ? 'true' : 'false')."
";
echo '[]: '.(boolval([]) ? 'true' : 'false')."
";
echo 'stdClass: '.(boolval(new stdClass) ? 'true' : 'false')."
";
?>
The above example will output:
0: false
42: true
0.0: false
4.2: true
"": false
"string": true
"0": false
"1": true
[1, 2]: true
[]: false
stdClass: true
SEE ALSO floatval(3), intval(3), strval(3), settype(3), is_bool(3), Type juggling.
PHP Documentation Group BOOLVAL(3)
02-10-2008
) ... cheers, drl