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 XFREE86
wmemchr
WMEMCHR(3) Linux Programmer's Manual WMEMCHR(3)NAME
wmemchr - search a wide character in a wide-character array
SYNOPSIS
#include <wchar.h>
wchar_t *wmemchr(const wchar_t *s, wchar_t c, size_t n);
DESCRIPTION
The wmemchr() function is the wide-character equivalent of the memchr(3) function. It searches the n wide characters starting at s for the
first occurrence of the wide character c.
RETURN VALUE
The wmemchr() function returns a pointer to the first occurrence of c among the n wide characters starting at s, or NULL if c does not
occur among these.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
+----------+---------------+---------+
|Interface | Attribute | Value |
+----------+---------------+---------+
|wmemchr() | Thread safety | MT-Safe |
+----------+---------------+---------+
CONFORMING TO
POSIX.1-2001, POSIX.1-2008, C99.
SEE ALSO memchr(3), wcschr(3)COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
GNU 2015-08-08 WMEMCHR(3)