Hello!
I need to read a text file containing certains rows and columns!The following is a sample file with only three rows!
01:41:30:00:05:51 OFF 48506649K 5769415 63494357K
01:41:30:00:05:65 ON 4493546K 27266552 5880264K
01:41:30:00:05:78 OFF 614556K 89121 47291K... (1 Reply)
I have a file with contents as follows
Record 1: Rejected - Error on table "DWO"."P2G_CUST_EVENTS".
ORA-00001: unique constraint (DWO.CUST_EVENTS_PK) violated
Record 5: Rejected - Error on table "DWO"."P2G_CUST_EVENTS".
ORA-00001: unique constraint (DWO.CUST_EVENTS_PK) violated
Record 6:... (5 Replies)
This is shell programming assignment.
It needs to create a file called .std_dbrc contains
STD_DBROOT=${HOME}/class/2031/Assgn3/STD_DB
(which includes all my simple database files)
and I am gonna use this .std_dbrc in my script file (read the data from the database files)
like this: .... (3 Replies)
Hi....can you guys help me out in this script??
Below is a portion text file and it contains these:
GEF001 000093625 MKL002510 000001 000000 000000 000000 000000 000000 000001
GEF001 000093625 MKL003604 000001 000000 000000 000000 000000 000000 000001
GEF001 000093625 MKL005675 000001... (1 Reply)
hi all,
I have this file with some user data.
example:
$cat myfile.txt
FName|LName|Gender|Company|Branch|Bday|Salary|Age
aaaa|bbbb|male|cccc|dddd|19900814|15000|20|
eeee|asdg|male|gggg|ksgu|19911216|||
aara|bdbm|male|kkkk|acke|19931018||23|
asad|kfjg|male|kkkc|gkgg|19921213|14000|24|... (4 Replies)
I am having one text file and i need to read that data from my shell script.
I will expain you the scenario:
Script look like:
For name type 1:
For age type 2:
For Salary type3:
echo "Enter the input:"
read the data
if input is 1 then go to the Text file and print the... (2 Replies)
Hi
I have a text file like below. THe content of the text will vary.
Entire text file have four consecutive lines followed with blank line.
I want to delete the occurrence of the two consicutive lines in the text file. I don't have pattern to match and delete. Just i need to delete all... (5 Replies)
hi I made this simple script to extract data and pretty much is a list and would like to extract data of two words separated by commas and I would like to make a new text file that would list these extracted data into a list and each in a new line.
Example that worked for me with text file... (5 Replies)
I have input data looks like this which is a part of a csv file
7,1265,76548,"0102:04"
8,1266,76545,"0112:04"
I need to make the output data should look like this and the output data will be part of text file:
7|1265000 |7654899 |A|
8|12660000 |76545999 |B|
The logic behind the... (6 Replies)
hi~
i need script on AIX. and have a text file following :
create aa
1
2
3
from a@a;
create bb
from b;
create cc
3
4
5
6
6
7
from c@c; (7 Replies)
Discussion started by: tomato00
7 Replies
LEARN ABOUT REDHAT
system
SYSTEM(3) Linux Programmer's Manual SYSTEM(3)NAME
system - execute a shell command
SYNOPSIS
#include <stdlib.h>
int system(const char *string);
DESCRIPTION
system() executes a command specified in string by calling /bin/sh -c string, and returns after the command has been completed. During
execution of the command, SIGCHLD will be blocked, and SIGINT and SIGQUIT will be ignored.
RETURN VALUE
The value returned is -1 on error (e.g. fork failed), and the return status of the command otherwise. This latter return status is in the
format specified in wait(2). Thus, the exit code of the command will be WEXITSTATUS(status). In case /bin/sh could not be executed, the
exit status will be that of a command that does exit(127).
If the value of string is NULL, system() returns nonzero if the shell is available, and zero if not.
system() does not affect the wait status of any other children.
CONFORMING TO
ANSI C, POSIX.2, BSD 4.3
NOTES
As mentioned, system() ignores SIGINT and SIGQUIT. This may make programs that call it from a loop uninterruptable, unless they take care
themselves to check the exit status of the child. E.g.
while(something) {
int ret = system("foo");
if (WIFSIGNALED(ret) &&
(WTERMSIG(ret) == SIGINT || WTERMSIG(ret) == SIGQUIT))
break;
}
Do not use system() from a program with suid or sgid privileges, because strange values for some environment variables might be used to
subvert system integrity. Use the exec(3) family of functions instead, but not execlp(3) or execvp(3). system() will not, in fact, work
properly from programs with suid or sgid privileges on systems on which /bin/sh is bash version 2, since bash 2 drops privileges on
startup. (Debian uses a modified bash which does not do this when invoked as sh.)
The check for the availability of /bin/sh is not actually performed; it is always assumed to be available. ISO C specifies the check, but
POSIX.2 specifies that the return shall always be non-zero, since a system without the shell is not conforming, and it is this that is
implemented.
It is possible for the shell command to return 127, so that code is not a sure indication that the execve() call failed.
SEE ALSO sh(1), signal(2), wait(2), exec(3)
2001-09-23 SYSTEM(3)