Hi All,
I'm have a file test.txt that looks like this
1939399393
03094994949
948383
I have to check whether the first character in the first line is 1 or not. I have tried the following option but it seems to fail
head -1 test.txt | grep ^1
but it seems to display the entire... (3 Replies)
I want to get the latest files from multiple directories, d1, d2,d3 and d4 under the parent dierectoy d.
can anyone help out with this?
thx (3 Replies)
Hi all,
I have a lot of files with extension ".o" and I would like to extract the 10th line after (last) occurrence of a given string in each of the files.
I tried:
$ grep "string_to_look_for" *.o -A 10 | tail -1
but it gives the occurrence in the last file with extension .o
... (1 Reply)
Hi Experts ,
we have a CDC file where we need to get the latest record of the Key columns
Key Columns will be CDC_FLAG and SRC_PMTN_I
and fetch the latest record from the CDC_PRCS_TS
Can we do it with a single awk command.
Please help.... (3 Replies)
Hi all,
If i would like to process a file input as below:
col1 col2 col3 ...col100
1 A C E A ...
3 D E G A
5 T T A A
6 D C A G
how can i perform a for loop to count the occurences of letters in each column? (just like uniq -c ) in every column.
on top of that, i would also like... (8 Replies)
Assume a string that contains one or multiple occurrences of three different keywords (abbreviated as "kw"). I would like to replace kw2 with some other string, say "qux". Specifically, I would like to replace that occurrence of kw2 that is the first one that is preceded by kw1 somewhere in the... (4 Replies)
Hi, i have file file.txt with data like:
START
03:11:30 a
03:11:40 b
END
START
03:13:30 eee
03:13:35 fff
END
jjjjjjjjjjjjjjjjjjjjj
START
03:14:30 eee
03:15:30 fff
END
ggggggggggg
iiiiiiiiiiiiiiiiiiiiiiiii
I want the below output
START (13 Replies)
Discussion started by: Jyotshna
13 Replies
LEARN ABOUT PHP
mb_strpos
MB_STRPOS(3) 1 MB_STRPOS(3)mb_strpos - Find position of first occurrence of string in a stringSYNOPSIS
int mb_strpos (string $haystack, string $needle, [int $offset], [string $encoding = mb_internal_encoding()])
DESCRIPTION
Finds position of the first occurrence of a string in a string.
Performs a multi-byte safe strpos(3) operation based on number of characters. The first character's position is 0, the second character
position is 1, and so on.
PARAMETERS
o $haystack
- The string being checked.
o $needle
- The string to find in $haystack. In contrast with strpos(3), numeric values are not applied as the ordinal value of a character.
o $offset
- The search offset. If it is not specified, 0 is used.
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 first occurrence of $needle in the $haystack string. If $needle is not found, it returns FALSE.
SEE ALSO mb_internal_encoding(3), strpos(3).
PHP Documentation Group MB_STRPOS(3)