07-04-2008
10 More Discussions You Might Find Interesting
1. Programming
Hello! I have a problem:
I compile some function, which must save file:
=====================
// prog.cpp
void save_file(){
FILE *fs = fopen("file.txt", "w");
if(!fs) cerr<< "cannot save";
fprintf(fs, "This is a text file.");
fclose(fs)
}
=====================
If i compile it from... (8 Replies)
Discussion started by: szzz
8 Replies
2. Shell Programming and Scripting
Hi i have wriiten a script which fetches the data from text file, and saves in the output in a text file itself, but i want that the output should save in different columns.
I have the output like:
For Channel:response_time__24.txt
1547 data points
0.339
0.299
0.448
0.581
7.380
... (1 Reply)
Discussion started by: rohitkalia
1 Replies
3. Shell Programming and Scripting
hi there !
i have exactly the same problem like this guy here
https://www.unix.com/shell-programming-scripting/127668-getting-curl-output-verbose-file.html
i am not able to save the curl verbose output..
the sollution in this thread (redirecting stderr to a file) does not work for me.... (0 Replies)
Discussion started by: crabmeat
0 Replies
4. UNIX for Dummies Questions & Answers
is i want to sort or delete lines etc etc to a file, how do i save the changes.
example i do sort file > file
when i do cat file, all data is erased.
thanks. (2 Replies)
Discussion started by: hobiwhenuknowme
2 Replies
5. Shell Programming and Scripting
Hi All,
I have a file, let's call it "info.tmp" that contains data like this ..
ABC123456
PCX333445
BCD789833
I need to read "info.tmp" and for each line add strings in a way that the final output is
put /logs/ua/dummy.trigger 'AAA00001.FTP.XXX.BLA03A01.xxxxxx(+1)'
where XXX... (5 Replies)
Discussion started by: Andy_ARG
5 Replies
6. Shell Programming and Scripting
Dears,
i want cut the lines from a log file. Example of the log file as follows..
May 27, 2011 5:54:51 PM com.huawei.ivas.utilities.sm.client.SMDeliverContrUtil isDeliverSM
FINE:
May 27, 2011 5:54:51 PM com.huawei.ivas.utilities.sm.client.SMUtil addSysUpMsgLog
INFO: . The message content... (1 Reply)
Discussion started by: tonypalokkaran
1 Replies
7. UNIX for Dummies Questions & Answers
Hi Unix gurus,
Maybe it is too much to ask for but please take a moment and help me out. A very humble request to you gurus. I'm new to Unix and I have started learning Unix. I have this project which is way to advanced for me.
File format: CSV file
File has four columns with no header... (8 Replies)
Discussion started by: arvindosu
8 Replies
8. Shell Programming and Scripting
FILE_ID extraction from file name and save it in CSV file after looping through each folders
My files are located in UNIX Server, i want to extract file_id and file_name from each file .and save it in a CSV file. How do I do that?
I have folders in unix environment, directory structure is... (15 Replies)
Discussion started by: princetd001
15 Replies
9. Shell Programming and Scripting
Hi friends,
In my shell script, I want to open a file using vi editor. After opening the file in vi, I want to save and quit this file automatically.... all through shell script.
the code segment is:
------------------------------------------------------------
cd ~/netfpga/projects/scone/sw/... (2 Replies)
Discussion started by: sachinteotia
2 Replies
10. Shell Programming and Scripting
I am trying to modify the "corestat v1.1" code which is in Perl.The typical output of this code is below:
Core Utilization
CoreId %Usr %Sys %Total
------ ----- ----- ------
5 4.91 0.01 4.92
6 0.06 ... (0 Replies)
Discussion started by: Zam_1234
0 Replies
LEARN ABOUT ULTRIX
setreuid
setreuid(2) System Calls Manual setreuid(2)
Name
setreuid - set real and effective user ID's
Syntax
setreuid(ruid, euid)
intruid, euid;
Description
The real and effective user ID's of the current process are set according to the arguments. If ruid or euid is -1, the current uid is
filled in by the system.
Return Values
Upon successful completion, a value of zero (0) is returned. Otherwise, a value of -1 is returned and errno is set to indicate the error.
Environment
BSD
If the process is superuser, or and matches with the real user ID, the effective user ID, or the saved set-user-id (as described in ), then
the real, effective, and the saved set-user-id are set to and respectively.
POSIX
SYSTEM-FIVE
When your program is compiled in the POSIX or SYSTEM-FIVE mode, if both arguments to are -1, the system call returns a value of -1 and
errno is set to [EINVAL].
The following semantics apply when using the function:
If the process is the superuser, the real, effective, and saved set-user-id (as described in ) are set to and respectively.
If the process is not the superuser, but the and matches with the real user ID, the effective user ID (only in the SYSTEM-FIVE and BSD
environments), or the saved set-user-id, then the effective ID is set to The real user ID and the saved set-user-id are left unchanged.
Diagnostics
[EPERM] The current process is not the superuser and the and specified does not match with the real user ID, the effective user ID
(only in SYSTEM-FIVE and BSD environment), or the saved set-user-id.
See Also
getuid(2), setregid(2), setuid(3)
setreuid(2)