ongoto: No. Quoting $str2 in this context performs a string comparison instead of an ERE match.
Rameshck: The ERE abc? will match ab or abc appearing anywhere in the expansion of $str1. To match only ab or abc you need to anchor the ERE on both ends:
This User Gave Thanks to Don Cragun For This Post:
Hi all, this is driving me nuts.
I need to evaluate if a variable in a shell script has a heading s or m character e.g. s92342394 or m9233489 if so then I need to get rid of them. I'm quite familiar with PERL and could do it there in 3 mins but I have not found a decent way to do this in a shell.... (1 Reply)
I'm working on a basic log parser in perl. Input file looks like:
len: 120713
foo
bar
file size of: testdir1/testdir1/testdir1/testdir1/testfile0 is 120713Of course there are tens of thousands of lines... I'm trying to compare the len and filesize values.
#!/usr/bin/perl
use strict;
use... (2 Replies)
Hi there, i wonder, is it possible to use regular expressions to partially select a string?
I have a bunch of server names which look like this
server1z-test
server2z2
server45z-primary
server13z3
I want to extract up to and including the 'z' in the server name, so for example
... (4 Replies)
Hello
I have a bash script where I need to do a substring replacement like this:
variable2=${variable1/foo/bar}
However, I only want "foo" replaced if it is at the end of the line.
However, this does not work:
variable2=${variable1/foo$/bar}
as you can see I'm using the $ regex for... (2 Replies)
My input contains a single word lines.
From each line
data.txt
prjtestBlaBlatestBlaBla
prjthisBlaBlathisBlaBla
prjthatBlaBladpthatBlaBla
prjgoodBlaBladpgoodBlaBla
prjgood1BlaBla123dpgood1BlaBla123
Desired output -->
data_out.txt
prjtestBlaBla
prjthisBlaBla... (8 Replies)
Hi,
I've a logfile which i need to parse and get the logs depending upon the user input. here, i'm providing an option to enter the string which can be matched with the log entries.
e.g. one of the logfile entry reads like this -
$str = " mpgw(BLUESOAPFramework):... (6 Replies)
Hi again,
I'm looking for some help with nawk, I can print a line which has a regex match in it from a file using /pattern/ but I'm looking for a way to only print the $tring which contains the pattern, rather than the whole line.
This $tring may be of variable length, may occur at any point... (1 Reply)
Can someone please tell me what is wrong with this stings comparison?
#!/bin/sh
#set -xv
set -u
VAR=$(ping -c 5 -w 10 google.com | grep icmp_req=5 | awk '{print $6}')
echo I like cookies
echo $VAR
if "$VAR" == 'icmp_req=5'
then
echo You Rock
else
echo You Stink
fiThis is the error.... (6 Replies)
Hi to you all,
I'm just struggling with a regex problem and I'm pretty sure that I'm missing sth obvious... :confused:
I need a regex to feed my grep in order to find lines that contain one string but not the other.
Here's the data example:
2015-04-08 19:04:55,926|xxxxxxxxxx| ... (11 Replies)
Discussion started by: stresing
11 Replies
LEARN ABOUT NETBSD
prop_string
PROP_STRING(3) BSD Library Functions Manual PROP_STRING(3)NAME
prop_string, prop_string_create, prop_string_create_cstring, prop_string_create_cstring_nocopy, prop_string_copy, prop_string_copy_mutable,
prop_string_size, prop_string_mutable, prop_string_cstring, prop_string_cstring_nocopy, prop_string_append, prop_string_append_cstring,
prop_string_equals, prop_string_equals_cstring -- string value property object
LIBRARY
Property Container Object Library (libprop, -lprop)
SYNOPSIS
#include <prop/proplib.h>
prop_string_t
prop_string_create(void);
prop_string_t
prop_string_create_cstring(const char *cstring);
prop_string_t
prop_string_create_cstring_nocopy(const char *cstring);
prop_string_t
prop_string_copy(prop_string_t string);
prop_string_t
prop_string_copy_mutable(prop_string_t string);
size_t
prop_string_size(prop_string_t string);
bool
prop_string_mutable(prop_string_t string);
char *
prop_string_cstring(prop_string_t string);
const char *
prop_string_cstring_nocopy(prop_string_t string);
bool
prop_string_append(prop_string_t str1, prop_string_t str2);
bool
prop_string_append_cstring(prop_string_t string, const char *cstring);
bool
prop_string_equals(prop_string_t str1, prop_string_t str2);
bool
prop_string_equals_cstring(prop_string_t string, const char *cstring);
DESCRIPTION
The prop_string family of functions operate on a string value property object type.
prop_string_create(void)
Create an empty mutable string. Returns NULL on failure.
prop_string_create_cstring(const char *cstring)
Create a mutable string that contains a copy of cstring. Returns NULL on failure.
prop_string_create_cstring_nocopy(const char *cstring)
Create an immutable string that contains a reference to cstring. Returns NULL on failure.
prop_string_copy(prop_string_t string)
Copy a string. If the string being copied is an immutable external C string reference, then the copy is also immutable and references
the same external C string. Returns NULL on failure.
prop_string_copy_mutable(prop_string_t string)
Copy a string, always creating a mutable copy. Returns NULL on failure.
prop_string_size(prop_string_t string)
Returns the size of the string, not including the terminating NUL. If the supplied object isn't a string, zero is returned.
prop_string_mutable(prop_string_t string)
Returns true if the string is mutable. If the supplied object isn't a string, false is returned.
prop_string_cstring(prop_string_t string)
Returns a copy of the string's contents as a C string. The caller is responsible for freeing the returned buffer.
In user space, the buffer is allocated using malloc(3). In the kernel, the buffer is allocated using malloc(9) using the malloc type
M_TEMP.
Returns NULL on failure.
prop_string_cstring_nocopy(prop_string_t string)
Returns an immutable reference to the contents of the string as a C string. If the supplied object isn't a string, NULL is returned.
prop_string_append(prop_string_t str1, prop_string_t str2)
Append the contents of str2 to str1, which must be mutable. Returns true upon success and false otherwise.
prop_string_append_cstring(prop_string_t string, const char *cstring)
Append the C string cstring to string, which must be mutable. Returns true upon success and false otherwise.
prop_string_equals(prop_string_t str1, prop_string_t str2)
Returns true if the two string objects are equivalent.
prop_string_equals_cstring(prop_string_t string, const char *cstring)
Returns true if the string's value is equivalent to cstring.
SEE ALSO prop_array(3), prop_bool(3), prop_data(3), prop_dictionary(3), prop_number(3), prop_object(3), proplib(3)HISTORY
The proplib property container object library first appeared in NetBSD 4.0.
BSD January 21, 2008 BSD