Hi,
I want to just expand the macros in a set of c files from a filelist which are in different directories. I don't want the header files included in the c file to be expanded. I have a perl script which does
gcc -E <infile> -I <path to search for header files> -imacros <infile>
But in... (1 Reply)
Hello,
I'm trying to write a method which will return the extension of a file given the file's name, e.g. test.txt should return txt. I'm using C so am limited to char pointers and arrays. Here is the code as I have it:
char* getext(char *file)
{
char *extension;
int i, j;... (5 Replies)
if ; then => is it correct?
i need to check 10 files size and do the same action. The file name is same but extension of the files are different. how do i deal with it? Please help (1 Reply)
Hi all,
I have a selection of files that contain several commands that write to a file and are started as background processes similar to below.
command_to_run_simulator -simulator_arguments > log_file 2>&1 &
command_to_run_simulator -simulator_arguments > log_file 2>&1 &... (2 Replies)
Hello,
I have this problem.
I have script file, e.g.
#!/usr/bin/ksh
echo $MY_DIR
ls -lt $MY_DIR
I want to list the script but with MY_DIR variable expanded. E.g.
MY_DIR=/abc/xyz (in shell MY_DIR is set)
So I want to list the script and see:
#!/usr/bin/ksh
echo /abc/xyz
ls... (6 Replies)
Compiling xpp (The X Printing Panel) on SL6 (RHEL6 essentially):
xpp.cxx: In constructor ‘printFiles::printFiles(int, char**, int&)’:
xpp.cxx:200: error: invalid conversion from ‘const char*’ to ‘char*’
The same error with all c++ constructors - gcc 4.4.4.
If anyone can throw any light on... (8 Replies)
Hi Guys,
I have a raidz zpool that consists of four disks. 2x2TB, 1x1TB and 1x0.75TB.
Originally it was only 1x1TB, 3x0.75TB, and I had around 1.7TB of storage capacity. I've just switched out two of the 0.75TB disks for the 2x2TB ones. I did this one at a time and now the resilvering is... (2 Replies)
echo $HOME return : /home/user1echo ~ return : /home/user1My_path=~/bin/"some dir1/some dir2"
kate "$My_path/some_file"Kate open a file "~/~/bin/some dir1/some dir2/some_file" which does not exists.
I was expecting kate to open : "~/bin/some dir1/some dir2/some_file"
Any help is welcome.
... (8 Replies)
Discussion started by: jcdole
8 Replies
LEARN ABOUT CENTOS
dblink_exec
DBLINK_EXEC(3) PostgreSQL 9.2.7 Documentation DBLINK_EXEC(3)NAME
dblink_exec - executes a command in a remote database
SYNOPSIS
dblink_exec(text connname, text sql [, bool fail_on_error]) returns text
dblink_exec(text connstr, text sql [, bool fail_on_error]) returns text
dblink_exec(text sql [, bool fail_on_error]) returns text
DESCRIPTION
dblink_exec executes a command (that is, any SQL statement that doesn't return rows) in a remote database.
When two text arguments are given, the first one is first looked up as a persistent connection's name; if found, the command is executed on
that connection. If not found, the first argument is treated as a connection info string as for dblink_connect, and the indicated
connection is made just for the duration of this command.
ARGUMENTS
conname
Name of the connection to use; omit this parameter to use the unnamed connection.
connstr
A connection info string, as previously described for dblink_connect.
sql
The SQL command that you wish to execute in the remote database, for example insert into foo values(0,'a','{"a0","b0","c0"}').
fail_on_error
If true (the default when omitted) then an error thrown on the remote side of the connection causes an error to also be thrown locally.
If false, the remote error is locally reported as a NOTICE, and the function's return value is set to ERROR.
RETURN VALUE
Returns status, either the command's status string or ERROR.
EXAMPLES
SELECT dblink_connect('dbname=dblink_test_standby');
dblink_connect
----------------
OK
(1 row)
SELECT dblink_exec('insert into foo values(21,''z'',''{"a0","b0","c0"}'');');
dblink_exec
-----------------
INSERT 943366 1
(1 row)
SELECT dblink_connect('myconn', 'dbname=regression');
dblink_connect
----------------
OK
(1 row)
SELECT dblink_exec('myconn', 'insert into foo values(21,''z'',''{"a0","b0","c0"}'');');
dblink_exec
------------------
INSERT 6432584 1
(1 row)
SELECT dblink_exec('myconn', 'insert into pg_class values (''foo'')',false);
NOTICE: sql error
DETAIL: ERROR: null value in column "relnamespace" violates not-null constraint
dblink_exec
-------------
ERROR
(1 row)
PostgreSQL 9.2.7 2014-02-17 DBLINK_EXEC(3)