10-14-2009
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I need to have an if statement in a script to run if there are certain processes running. Easiest way I can see to do this is to run a ps and grep the results based on what I am looking for:
$ ps -ef | grep wtrs
---
webtrend 5046 1 0 May 12 ? 0:28 /webtrends/versions/6.1/wtrs_ui... (6 Replies)
Discussion started by: LordJezo
6 Replies
2. Shell Programming and Scripting
Hi ,
I have file, which has the below content:
line 100
a
b
c
d
line300
a
s
d
f
s
line200
a
s
d
a (3 Replies)
Discussion started by: little_wonder
3 Replies
3. Shell Programming and Scripting
Looking for awk statement that will match all lines starting with "# "
if ( $1 == \^"#" )
Input file:
# of the server. If you would like to set these, please take out the
# pound (#) sign in front of one or all severities and set it equal to
# severity desired. For example, FATAL=3
#... (2 Replies)
Discussion started by: Arsenalman
2 Replies
4. Emergency UNIX and Linux Support
Hi ,
I have a huge file like this
=245 this is testing
=035 abc123
=245 this is testing1
=035 abc124
=245 this is testing2
=035 abc125
=035 abc126
=245 this is testing3
here i have to pull out those lines having two =035 instead of alternative 035 and 245 i.e extract... (18 Replies)
Discussion started by: umapearl
18 Replies
5. Solaris
Hi guys,
I usualy am able to google awk stuff but I can't find it so far and there are so many awking gurus here that I will give it a shot.
I want to print $1;$3;"$5 up to the $NF". In other words, I can have 1000 colums, but need to have $5 up to the end.
I started with the idea of... (2 Replies)
Discussion started by: plmachiavel
2 Replies
6. Shell Programming and Scripting
I have a file that looks like this:
John Smith
http://www.profile1.com
http://www.profile2.com
http://www.profile3.com
Marc Olsen
http://www.profile4.com
http://www.profile5.com
http://www.profile6.com
http://www.profile7.com
Lynne Doe
http://www.profile8.com
http://www.profile9.com... (3 Replies)
Discussion started by: locoroco
3 Replies
7. Shell Programming and Scripting
Dear All,
I would like to compare two files and return the number of matches found.
Example
File A
Lx2
L1_Mus1
L1Md_T
Lx5
L1M2
L1_Mus3
Lx3_Mus
Lx9
Lx2A
L1Md_A
L1Md_F2
File B
L1_Mus3
L1_Mus3 (3 Replies)
Discussion started by: paolo.kunder
3 Replies
8. Shell Programming and Scripting
Here is the task that I was presented with:
I am dealing with about a 10,000 line input deck file for an analysis. About 10 separate blocks of around 25 lines of code each need to be updated in the input deck.
The input deck (deckToChange in the code below) comes with 2 separate files. File 1... (5 Replies)
Discussion started by: tiktak292
5 Replies
9. Shell Programming and Scripting
Hello
I have a large file1 which has many events like "2014010420" and following lines under each event that start with text . It has this form:
2014010420 num --- --- num ....
NTE num num --- num...
EFA num num --- num ...
LASW num num --- num... (9 Replies)
Discussion started by: phaethon
9 Replies
10. UNIX for Dummies Questions & Answers
Hi all!
Thanks for taking the time to view this!
I want to grep out all lines of a file that starts with pattern 1 but also does not match with the second pattern.
Example:
Drink a soda
Eat a banana
Eat multiple bananas
Drink an apple juice
Eat an apple
Eat multiple apples
I... (8 Replies)
Discussion started by: demmel
8 Replies
LEARN ABOUT CENTOS
sigsetjmp
SETJMP(3) Linux Programmer's Manual SETJMP(3)
NAME
setjmp, sigsetjmp - save stack context for nonlocal goto
SYNOPSIS
#include <setjmp.h>
int setjmp(jmp_buf env);
int sigsetjmp(sigjmp_buf env, int savesigs);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
setjmp(): see NOTES.
sigsetjmp(): _POSIX_C_SOURCE >= 1 || _XOPEN_SOURCE || _POSIX_C_SOURCE
DESCRIPTION
setjmp() and longjmp(3) are useful for dealing with errors and interrupts encountered in a low-level subroutine of a program. setjmp()
saves the stack context/environment in env for later use by longjmp(3). The stack context will be invalidated if the function which called
setjmp() returns.
sigsetjmp() is similar to setjmp(). If, and only if, savesigs is nonzero, the process's current signal mask is saved in env and will be
restored if a siglongjmp(3) is later performed with this env.
RETURN VALUE
setjmp() and sigsetjmp() return 0 if returning directly, and nonzero when returning from longjmp(3) or siglongjmp(3) using the saved con-
text.
CONFORMING TO
C89, C99, and POSIX.1-2001 specify setjmp(). POSIX.1-2001 specifies sigsetjmp().
NOTES
POSIX does not specify whether setjmp() will save the signal mask. In System V it will not. In 4.3BSD it will, and there is a function
_setjmp that will not. By default, Linux/glibc follows the System V behavior, but the BSD behavior is provided if the _BSD_SOURCE feature
test macro is defined and none of _POSIX_SOURCE, _POSIX_C_SOURCE, _XOPEN_SOURCE, _XOPEN_SOURCE_EXTENDED, _GNU_SOURCE, or _SVID_SOURCE is
defined.
If you want to portably save and restore signal masks, use sigsetjmp() and siglongjmp(3).
setjmp() and sigsetjmp() make programs hard to understand and maintain. If possible an alternative should be used.
SEE ALSO
longjmp(3), siglongjmp(3)
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/.
2009-06-26 SETJMP(3)