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Top Forums Shell Programming and Scripting avoid error on terminal window! Post 302633125 by dixits on Tuesday 1st of May 2012 11:20:35 AM
Old 05-01-2012
avoid error on terminal window!

Hi Guys,
I am using simple ls command to find out whether the dir exist there or not. If dir found than remove. But the problem is I don't want the error shown on the terminal window that "dir not found" on the terminal window everytime i execute it. The code I am using is:
Code:
 
set x = `/bin/ls -1d temp | wc -l`
if ($x > 0) then
/bin/rm -rf temp
endif
 
Option 2:
I also tried
set x = `/bin/ls -1d temp | wc -l` >& /dev/null

Option 2 doesn't seem to be working at all, since still it comes up with the error message saying ls: cannot access temp: No such file or directory if temp doesn't exist although if I do echo $x the value is 0, so the logic seems to be working. How can I avoid the error message on the terminal window without changing my logic?

Thanks in advance
 

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MAXDB_STMT_SQLSTATE(3)							 1						    MAXDB_STMT_SQLSTATE(3)

maxdb_stmt_sqlstate - Returns SQLSTATE error from previous statement operation

SYNOPSIS
string maxdb_stmt_sqlstate (resource $stmt) DESCRIPTION
Returns a string containing the SQLSTATE error code for the most recently invoked prepared statement function that can succeed or fail. The error code consists of five characters. '00000' means no error. The values are specified by ANSI SQL and ODBC. Note Note that not all MaxDB errors are yet mapped to SQLSTATE's. The value HY000 (general error) is used for unmapped errors. RETURN VALUES
Returns a string containing the SQLSTATE error code for the last error. The error code consists of five characters. '00000' means no error. EXAMPLES
Example #1 Object oriented style <?php /* Open a connection */ $maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB"); /* check connection */ if (maxdb_connect_errno()) { printf("Connect failed: %s ", maxdb_connect_error()); exit(); } $maxdb->query("CREATE TABLE temp.mycity LIKE hotel.city"); $maxdb->query("INSERT INTO temp.mycity SELECT * FROM hotel.city"); $query = "SELECT name, zip FROM temp.mycity ORDER BY name"; if ($stmt = $maxdb->prepare($query)) { /* drop table */ $maxdb->query("DROP TABLE temp.mycity"); /* execute query */ $stmt->execute(); printf("Error: %s. ", $stmt->sqlstate); /* close statement */ $stmt->close(); } /* close connection */ $maxdb->close(); ?> Example #2 Procedural style <?php /* Open a connection */ $link = maxdb_connect("localhost", "MONA", "RED", "DEMODB"); /* check connection */ if (maxdb_connect_errno()) { printf("Connect failed: %s ", maxdb_connect_error()); exit(); } maxdb_query($link, "CREATE TABLE temp.mycity LIKE hotel.city"); maxdb_query($link, "INSERT INTO temp.mycity SELECT * FROM hotel.city"); $query = "SELECT name, zip FROM temp.mycity ORDER BY name"; if ($stmt = maxdb_prepare($link, $query)) { /* drop table */ maxdb_query($link, "DROP TABLE temp.mycity"); /* execute query */ maxdb_stmt_execute($stmt); printf("Error: %s. ", maxdb_stmt_sqlstate($stmt)); /* close statement */ maxdb_stmt_close($stmt); } /* close connection */ maxdb_close($link); ?> The above example will output something similar to: Warning: maxdb_stmt_execute(): -4004 POS(23) Unknown table name:MYCITY [42000] <...> Error: 42000. SEE ALSO
maxdb_stmt_errno(3), maxdb_stmt_error(3). PHP Documentation Group MAXDB_STMT_SQLSTATE(3)
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