outputting selected characters from within a variable
Hi all,
if for example I had a variable containing the string 'hello', is the any way I can output, for example, the e and the 2nd l based on their position in the string not their character (in this case 2 and 4)?
any general pointers in the right direction will be much appreciated, at present i'm looking at awk but only seem to be able to find references to fields and lines.
thanks
skinnygav p.s. Using Bash shell by the way
---------- Post updated at 08:17 AM ---------- Previous update was at 06:00 AM ----------
I've solved this issue to an extent with
this will output the 2nd character e.
Is there any way I can modify this to output the character in the position stored in var2?
Hi ,
I need to get the specified word from the variable.can some one help me out in this ?
input=ASD34567P
i need to get the value as :
output1=34567
So i need to ignore the last character and get the remaining values.
THANKS IN ADVANCE. (6 Replies)
Using STDIN, how can I use perl to take an input string, with all lower case letters in the first five characters, and convert them to uppercase...
then take all uppercase letters in the second five characters and convert them to lowercase.
Example:
MichaelSmith to michaELSMIth
Thank you! (2 Replies)
Hi Everyone,
I need to assign the value to the variable after selection.
Anyone can help me?
for example:
data_type_SQL=$($CONNECT cat <<-__EOF__
SET NOCOUNT ON
select location_type, location_id, warehouse from JEALOCATION where
LOCATION_ID="$data_LocID_SQL"
for "data_type_SQL"... (9 Replies)
I have a variable var which contains "ABCDEFDH"
Now I have to remove the first 4 characters that is "ABCD"
so my variable should contain only "DEFH"
plzz tell me how to do that .
i am using bash shell (1 Reply)
I am trying to print 1st, 2nd, 13th and 14th fields of a file of line numbers from 29 to 10029. I dont know how to put this in one code. Currently I am removing the selected lines by
awk 'NR==29,NR==10029' File1 > File2
and then doing
awk '{print $1, $2, $13, $14}' File2 > File3
Can... (3 Replies)
I'm using a shell script to get user input with this command:
read UserInput
I would then like to take the "UserInput" variable and strip out all of the following characters, regardless of where they appear in the variable or how many occurrences there are:
\/":|<>+=;,?*@
I'm not sure... (5 Replies)
From a shell script, I'm trying to get the first two characters of an environment variable.
If I type at the command promot:
XX=`echo $MYVAR | cut -c1-2`
echo $XX
It works just fine
However, if I execute the exact same thing from a shell script, I get:
cut: you must specify a list of... (2 Replies)
Hello All,
I am learning BASH scripting and I would appreciate any help with a small problem I am having...
I am writing a script that builds a simple hosts file for DNS reasons related to a piece of software called netdb by parsing another application's config files for IP's and their... (4 Replies)
Hi all
I have a variable name as below
runbatch=FCSTworLOADfx_CYR
Now i need to search for FCST in this variable and run a program
I am doing like this but it is failing
if ; then ****RUN PROGRAM**
Please help
DJ
Please use CODE tags when displaying sample input,... (3 Replies)
I have this fastq file:
@M04961:22:000000000-B5VGJ:1:1101:9280:7106 1:N:0:86
GGGGGGGGGGGGCATGAAAACATACAAACCGTCTTTCCAGAAATTGTTCCAAGTATCGGCAACAGCTTTATCAATACCATGAAAAATATCAACCACACCA
+test-1
GGGGGGGGGGGGGGGGGCCGGGGGFF,EDFFGEDFG,@DGGCGGEGGG7DCGGGF68CGFFFGGGG@CGDGFFDFEFEFF:30CGAFFDFEFF8CAF;;8... (10 Replies)
Discussion started by: Xterra
10 Replies
LEARN ABOUT PHP
mb_strrpos
MB_STRRPOS(3) 1 MB_STRRPOS(3)mb_strrpos - Find position of last occurrence of a string in a stringSYNOPSIS
int mb_strrpos (string $haystack, string $needle, [int $offset], [string $encoding = mb_internal_encoding()])
DESCRIPTION
Performs a multibyte safe strrpos(3) operation based on the number of characters. $needle position is counted from the beginning of
$haystack. First character's position is 0. Second character position is 1.
PARAMETERS
o $haystack
- The string being checked, for the last occurrence of $needle
o $needle
- The string to find in $haystack.
o $offset
- May be specified to begin searching an arbitrary number of characters into the string. Negative values will stop searching at an
arbitrary point prior to the end of the string.
o $encoding
-The $encoding parameter is the character encoding. If it is omitted, the internal character encoding value will be used.
RETURN VALUES
Returns the numeric position of the last occurrence of $needle in the $haystack string. If $needle is not found, it returns FALSE.
CHANGELOG
+--------+---------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------+
| 5.2.0 | |
| | |
| | Added the optional parameter $offset. |
| | |
+--------+---------------------------------------+
NOTES
Note
The $encoding parameter was moved from the third position to the fourth in PHP 5.2.0. For backward compatibility, $encoding can be
specified as the third parameter, but doing so is deprecated and will be removed in the future.
SEE ALSO mb_strpos(3), mb_internal_encoding(3), strrpos(3).
PHP Documentation Group MB_STRRPOS(3)