I am trying to parse iostat output for io issues..
I want to print all lines including second occurance of 'extended' till EOF(end of file). Can we do that using awk or sed one liners or do we need a script for it? (1 Reply)
Ok so I can use awk to match a pattern and print the whole line with print $0. Is there any way to just tell awk to print every line of output when the pattern matches?
I'm having it wait for the word error and then print that entire line. But what I actually need to see is all the following... (9 Replies)
I have in a file
domain.com. 1909 IN A 1.22.33.44
domain.com. 1909 IN A 22.33.44.55
ns1.domain.com. 1699 IN A 33.44.55.66
ns2.domain.com. 1806 IN A 77.77.66.66
I need to "grep" or "awk" out the lines starting with domain.com. as follows.
domain.com. 1909 IN A 1.22.33.44
domain.com.... (3 Replies)
I am using Solaris, I want to print
3 lines before pattern match
pattern
5 lines after pattern match
Pattern is abcd to be searched in a.txt. Looking for the solution in sed/awk/perl. Thanks ..
Input File a.txt:
=================
1
2
3
abcd
4
5
6
7
8 (7 Replies)
I need to print the lines that do not match a pattern. I tried using grep -v and sed -n '/pattern/!p', but both of them are not working as I am passing the pattern as variable and it can be null some times.
Example
........ abcd......
.........abcd......
.........abcd......... (4 Replies)
Hi,
i have been trying to extract multiple lines based on two different patterns as below:-
file1
@jkm|kdo|aas012|192.2.3.1 blablbalablablkabblablabla
sjfdsakfjladfjefhaghfagfkafagkjsghfalhfk
fhajkhfadjkhfalhflaffajkgfajkghfajkhgfkf
jahfjkhflkhalfdhfwearhahfl
@jkm|sdf|wud08q|168.2.1.3... (8 Replies)
URGENT HELP IS NEEDED!!
I am looking to move matching lines (01 - 07) from File1 and 77 tab the matching string from File2, to File3.txt. I am almost done but
- Currently, script is not printing lines to File3.txt in order.
- Also the matching lines are not moving out of File1.txt
... (1 Reply)
Hello,
I have a file contains two columns. I need to print the lines after “xxx” so i'm trying to match "xxx" & cut the lines after that. I'm trying with the grep & cut command, if there any simple way to extract this please help me.
Sample file :
name id
AAA 123
AAB 124
AAC 125... (4 Replies)
Discussion started by: Shenbaga.d
4 Replies
LEARN ABOUT REDHAT
close
CLOSE(2) Linux Programmer's Manual CLOSE(2)NAME
close - close a file descriptor
SYNOPSIS
#include <unistd.h>
int close(int fd);
DESCRIPTION
close closes a file descriptor, so that it no longer refers to any file and may be reused. Any locks held on the file it was associated
with, and owned by the process, are removed (regardless of the file descriptor that was used to obtain the lock).
If fd is the last copy of a particular file descriptor the resources associated with it are freed; if the descriptor was the last reference
to a file which has been removed using unlink(2) the file is deleted.
RETURN VALUE
close returns zero on success, or -1 if an error occurred.
ERRORS
EBADF fd isn't a valid open file descriptor.
EINTR The close() call was interrupted by a signal.
EIO An I/O error occurred.
CONFORMING TO
SVr4, SVID, POSIX, X/OPEN, BSD 4.3. SVr4 documents an additional ENOLINK error condition.
NOTES
Not checking the return value of close is a common but nevertheless serious programming error. It is quite possible that errors on a pre-
vious write(2) operation are first reported at the final close. Not checking the return value when closing the file may lead to silent
loss of data. This can especially be observed with NFS and disk quotas.
A successful close does not guarantee that the data has been successfully saved to disk, as the kernel defers writes. It is not common for
a filesystem to flush the buffers when the stream is closed. If you need to be sure that the data is physically stored use fsync(2). (It
will depend on the disk hardware at this point.)
SEE ALSO open(2), fcntl(2), shutdown(2), unlink(2), fclose(3), fsync(2)
2001-12-13 CLOSE(2)