08-08-2015
10 More Discussions You Might Find Interesting
1. Post Here to Contact Site Administrators and Moderators
Hi,
I submitted my blog on UNIX in the links section. On submitting, i chose the category as Unix/Linux standards, which i now feel is incorrect. I would like to change the category of my link, but i don't find any option to change the category.
Please help me in doing the needful.
Thanks... (7 Replies)
Discussion started by: guruprasadpr
7 Replies
2. Shell Programming and Scripting
Hi All,
I need some help in parsing out the first (top) data lines of each category (categories are based on the first column a, b, c, d, e.( see example file below) from a big file
a dfg 3 6 8 9
a fgh 5 7 0 9
a gkl 5 2 4 7
a glo 7 0 1 5
b ghj 9 0 4 2
b mkl 7 8 0 5
b jkl 9 0 4 5
c jkl 2... (1 Reply)
Discussion started by: Lucky Ali
1 Replies
3. Shell Programming and Scripting
Hi All,
Would it be possible using awk to split a given file into two files based on a certain condition such that one output file will contain all lines that fit the condition while the other output file will contain lines that did not fit the condition?
Here is a sample input file
... (6 Replies)
Discussion started by: cympaulife
6 Replies
4. UNIX for Dummies Questions & Answers
Started using unix commands recently.
I have 50 gzip files. I want to grep each of these files for a line count based particular category in column 3. How can I do that?
For example
Sr.No Date City Description Code Address
1 06/09 NY living here 0909 10st st nyc
2 ... (5 Replies)
Discussion started by: jinxx
5 Replies
5. Shell Programming and Scripting
Hi,
I have a file and I want the category for each row to be its highest value.
gene highest medium lower lowest
ABC 20 30 50 70
DEF 90 20 60 0
o/p
gene highest medium lower lowest category
ABC... (6 Replies)
Discussion started by: Diya123
6 Replies
6. Shell Programming and Scripting
Hello All,
I got a requirement when I was working with a file. Say the file has unloads of data from a table in the form
1|121|asda|434|thesi|2012|05|24|
1|343|unit|09|best|2012|11|5|
I was put into a scenario where I need the field count in all the lines in that file. It was simply... (6 Replies)
Discussion started by: PikK45
6 Replies
7. Shell Programming and Scripting
Hi,
I have the following input in a file & need output as mentioned below(need counter of every occurance of field which is to be increased by 1).
Input:
919143110065
919143110065
919143110052
918648846132
919143110012
918648873782
919143110152
919143110152
919143110152... (2 Replies)
Discussion started by: siramitsharma
2 Replies
8. Shell Programming and Scripting
I have list of file names in filename.txt
below is file format
>>File1
_________________________
01~12345~Y~YES~aaaaa~can
02~23456~N~NO~bbbbb~can
.
.
.
99~23__________________________
Need to find total count from each file depending on specific string and add them to have total count... (17 Replies)
Discussion started by: santoshdrkr
17 Replies
9. Shell Programming and Scripting
Please consider the following file, I have many groups which can be of 3 types, T1 (Serial_Number 1) T2 (Serial_Number 2) and T1*T2 (all other Serial_Number).
I want to only consider groups that have both T1 and T2 present and their values are different from each other. In the example file,... (8 Replies)
Discussion started by: jianp83
8 Replies
10. What is on Your Mind?
Hello All,
I was thinking to start this POLL, sometime back but couldn't get time so starting it today. So we all work either as an Admin or as a Developer or as a QA etc. So let's have a thread(POLL) where we could share our experiences(if it doesn't come anyone's privacy category) so that we... (17 Replies)
Discussion started by: RavinderSingh13
17 Replies
LEARN ABOUT CENTOS
sigorset
SIGSETOPS(3) Linux Programmer's Manual SIGSETOPS(3)
NAME
sigemptyset, sigfillset, sigaddset, sigdelset, sigismember - POSIX signal set operations.
SYNOPSIS
#include <signal.h>
int sigemptyset(sigset_t *set);
int sigfillset(sigset_t *set);
int sigaddset(sigset_t *set, int signum);
int sigdelset(sigset_t *set, int signum);
int sigismember(const sigset_t *set, int signum);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
sigemptyset(), sigfillset(), sigaddset(), sigdelset(), sigismember():
_POSIX_C_SOURCE >= 1 || _XOPEN_SOURCE || _POSIX_SOURCE
DESCRIPTION
These functions allow the manipulation of POSIX signal sets.
sigemptyset() initializes the signal set given by set to empty, with all signals excluded from the set.
sigfillset() initializes set to full, including all signals.
sigaddset() and sigdelset() add and delete respectively signal signum from set.
sigismember() tests whether signum is a member of set.
Objects of type sigset_t must be initialized by a call to either sigemptyset() or sigfillset() before being passed to the functions
sigaddset(), sigdelset() and sigismember() or the additional glibc functions described below (sigisemptyset(), sigandset(), and sig-
orset()). The results are undefined if this is not done.
RETURN VALUE
sigemptyset(), sigfillset(), sigaddset(), and sigdelset() return 0 on success and -1 on error.
sigismember() returns 1 if signum is a member of set, 0 if signum is not a member, and -1 on error. On error, these functions set errno to
indicate the cause.
ERRORS
EINVAL sig is not a valid signal.
CONFORMING TO
POSIX.1-2001.
NOTES
Glibc notes
If the _GNU_SOURCE feature test macro is defined, then <signal.h> exposes three other functions for manipulating signal sets.
int sigisemptyset(sigset_t *set);
returns 1 if set contains no signals, and 0 otherwise.
int sigorset(sigset_t *dest, sigset_t *left, sigset_t *right);
places the union of the sets left and right in dest.
int sigandset(sigset_t *dest, sigset_t *left, sigset_t *right);
places the intersection of the sets left and right in dest.
sigorset() and sigandset() return 0 on success, and -1 on failure.
These functions are nonstandard (a few other systems provide similar functions) and their use should be avoided in portable applications.
SEE ALSO
sigaction(2), sigpending(2), sigprocmask(2), sigsuspend(2)
COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2013-04-19 SIGSETOPS(3)