Grepping for filenames containing value in specific segment within file
I am trying to grep for filenames containing a specific value within a particular segment. The lines containing the segment I'm looking through reads like "HL^1^^1^1", "10^9^9^0", and "HL^11^4^8^1". I would like to find the data that contains only the number nine after the third caret where the line begins with the phrase "HL". I've tried ranges with
, etc. but not every filename that should be returned are being reported. The values following the first and caret do not have a fixed range, nor is there a set number of how many characters will be contained there. Please help. Thanks!
Hi ,
I have a list of files in a directory and filename format is as follows:
PQ223390
PQ876912
PQ768901
PQ398140 and so on
I want to grep the first four digits of all the files after PQ, into a file.
Ex:
2233
8769
6890
3981 and so on
Can anyone tell me the command?
thankx jazz (11 Replies)
When printing a large file, segment occured. but part of it can be printed normally. There seems no mistake in usage.
How to solve the problem. Actually, the file is not very very large. Only 300-400 A4 pages.
Thanks (1 Reply)
Hi All,
I have a file (Names.txt) and the contents of the file is give below.
$ cat Names.txt
FF313207008.txt
FF223207007.txt
FF143207006.txt
FF372150600.txt
FF063407005.txt
FF063307005.txt
$
From these given file names I want to find the files which has the 6th index value as 2. So... (5 Replies)
Hello,
I have a log file that outputs the data below. I would like to grep and display the data where column is equal '148.'
I've searched the forum, and couldn't find any answers.
I've tried all the grep switches and I get the same result as the log.
I'm thinking I might have to use an... (4 Replies)
Hi
I would like to know how to search through a directory and pull out files that has a specific pattern in the filename. For example if the filename has "bsc" in it, then that file must be moved to another directory where I will perform some operations on it. I know grep can be used, but I'm... (17 Replies)
Greeting to all.
I have big text file that I would like to segment into many smaller files. Each file should be maximum 10 000 lines.
The file is called time.txt. after the execution of the file I would like to have.
time_01.txt, time_02, txt, ...,time_n.txt
Can anybody help.
Br. (2 Replies)
Hi,
Whether the following piece of code is placed in the read-only memory of code (text) segment or data segment?
char *a = "Hello";
I am getting two different answers while searching in google :( that's why the confusion is (7 Replies)
Hi
I have output of a command saved in a file..
# cat /file.txt
System: cu=4 ent=0.1 mode=on
cu min u s w i
0 500 0.1 0.3 0.5 0.1
1 200 0.5 0.2 0.3 0.0
By using ksh, what I need to do is, I need to grep the u,s,w and i... (5 Replies)
Hi
I have a file like
# vi require.txt
1,BANK,Read blocks that cycle.
yellow
Read blocks.
2,ACCOUNT,Finished
Red
Finished .
3,LOAN, pipe
white
pipe
4,PROFIT,Resolve.
black
Resolve
Am using like
cat require.txt | grep -w ACCOUNTThe output I get is (8 Replies)
Hi All,
I have to pick particular segments from a file and I have prepared below shell script.But its not working and I am not able to find out whats the issue.could you guys pls help?
Sample file:
TS3*1451575*12*20151231*4*482.44
NM1*QC*1*CUTLER*BETTY
DTM*472*20150808... (4 Replies)
Discussion started by: Venkata Prasad
4 Replies
LEARN ABOUT ULTRIX
shmat
shmop(2) System Calls Manual shmop(2)Name
shmop, shmat, shmdt - shared memory operations
Syntax
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/shm.h>
char *shmat (shmid, shmaddr, shmflg)
int shmid;
char *shmaddr;
int shmflg;
int shmdt (shmaddr)
char *shmaddr;
Description
The system call attaches the shared memory segment associated with the shared memory identifier specified by shmid to the data segment of
the calling process. The segment is attached at the address specified by one of the following criteria:
If shmaddr is equal to zero, the segment is attached at the first available address as selected by the system.
If shmaddr is not equal to zero and (shmflg & SHM_RND ) is true, the segment is attached at the address given by (shmaddr- (shmaddr modulus
SHMLBA )).
If shmaddr is not equal to zero and (shmflg & SHM_RND ) is false, the segment is attached at the address given by shmaddr.
The segment is attached for reading if (shmflg & SHM_RDONLY ) is true. Otherwise, it is attached for reading and writing.
The system call detaches from the calling process's data segment the shared memory segment located at the address specified by shmaddr.
Return Values
Upon successful completion, the return values are as follows:
o The system call returns the data segment start address of the attached shared memory segment.
o The system call returns a value of zero (0).
Otherwise, a value of -1 is returned, and errno is set to indicate the error.
Diagnostics
The system call fails and not attach the shared memory segment, if any of the following is true:
[EINVAL] The shmid is not a valid shared memory identifier.
[EACCES] Operation permission is denied to the calling process. For further information, see
[ENOMEM] The available data space is not large enough to accommodate the shared memory segment.
[EINVAL] The shmaddr is not equal to zero, and the value of (shmaddr- (shmaddr modulus SHMLBA )) is an illegal address.
[EINVAL] The shmaddr is not equal to zero, (shmflg & SHM_RND ) is false, and the value of shmaddr is an illegal address.
[EMFILE] The number of shared memory segments attached to the calling process would exceed the system imposed limit.
The fails and does not detach the shared memory segment if:
[EINVAL] The shmaddr is not the data segment start address of a shared memory segment.
See Alsoexecve(2), exit(2), fork(2), shmctl(2), shmget(2)shmop(2)