Sponsored Content
Top Forums Shell Programming and Scripting For loop statement - catch error Post 302136744 by ajcannon on Wednesday 19th of September 2007 11:39:54 AM
Old 09-19-2007
if

I think the use of the 'if' statement is a perfectly reasonable solution. You need some kind if conditional statement to determine whether or not your file exists and an 'if' would be OK
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

if statement in a while loop

#!/usr/bin/ksh echo Please enter while read n do echo $n >> datafile done question: How can I enject an if statement that if the users enter 0 (zero) the program will exit? this is what I have but not working #!/usr/bin/ksh echo Please enter number while read n do if $n=0 then... (2 Replies)
Discussion started by: bobo
2 Replies

2. Shell Programming and Scripting

Unable to catch the output after core dump and bus error

I have a weird situation in which the binary dumps core and gives bus error. But before dumping the core and throwing the buss error, it gives some output. unfortunately I can't grep the output before core dump db2bfd -b test.bnd maxSect 15 Bus Error (core dumped) But if I do ... (4 Replies)
Discussion started by: rakeshou
4 Replies

3. Programming

C - advice how to catch some weird error

I have some unstable mistake in my program and out-of-idea how to catch it. I am looking for advice with a way to work it out! I have in a pretty complicated program (but one source file) set of int-counters - 15, if exactly. Lately, on final printout I have inpossible value (I am... (3 Replies)
Discussion started by: alex_5161
3 Replies

4. Shell Programming and Scripting

Catch error from SFTP session

We have script running to SFTP some file to the remote server. The problem is the SFTP transfer returns an exit code of 0 even if there is permission error during file transfer, connection refuse (like when sftp server is down), thus, returning the status of the script as success. I was thinking... (3 Replies)
Discussion started by: The One
3 Replies

5. Shell Programming and Scripting

for loop with internal unix command in statement throwing error

Hi I've gotten a plugin script that won't run. I keeps throwing an error at the following line. for BARCODE_LINE in `cat ${TSP_FILEPATH_BARCODE_TXT} | grep "^barcode"` do #something done The error reads ... (3 Replies)
Discussion started by: jdilts
3 Replies

6. Shell Programming and Scripting

Python rrdtool try catch statement

I have a Python script that updates an rrd file with data it pulls from a database. Here is a snippet of the Python code for i in range(numrowed): row = curred.fetchone() time_stamp = row rx_max = row ret =... (1 Reply)
Discussion started by: kaf3773
1 Replies

7. Shell Programming and Scripting

Unable to catch the redirection error when the disk is full

Hi Experts, Problem summary : I am facing the below problem on huge files when the disk is getting full on the half way through the execution. If the disk was already full , the commands fail & everything is fine. Sample Code : head_rec_data_file=`head -1 sample_file.txt` cat... (9 Replies)
Discussion started by: Pruthviraj_shiv
9 Replies

8. Shell Programming and Scripting

While loop within if statement

Hi, I'm a rookie who is trying to learn this stuff. What I need help with is putting together a non complicated "while" loop within the below "if" statement. I also need the while loop to keep looping until the user types a key to end the loop. Please reveal the proper insertion points. Thank... (4 Replies)
Discussion started by: jefferj54
4 Replies

9. Shell Programming and Scripting

[Solved] FOR loop / IF statement returning error

The code at the bottom is a simplified example of what we have. If I use the following: && echo "echo failed" $? returns 1 When I use if ; then echo "echo failed" ; fi $? returns 0 Does anyone know what's wrong with this? Using AIX 6.1 and KSH for NUM in 1 2 3 do ... (5 Replies)
Discussion started by: jfxdavies
5 Replies

10. Shell Programming and Scripting

How to catch sql error in script?

Hi Gurus, I have a script which send sql query to oracle db and return value to my script. dummy code like below: sqlplus -s user/${PASSWD}@${ORACLE_SID} @${DIR}/query.sql > outputfile using above code, when query has error, it send error to same out put file and exit code is 0, is... (6 Replies)
Discussion started by: ken6503
6 Replies
EXECUTE(7)						  PostgreSQL 9.2.7 Documentation						EXECUTE(7)

NAME
EXECUTE - execute a prepared statement SYNOPSIS
EXECUTE name [ ( parameter [, ...] ) ] DESCRIPTION
EXECUTE is used to execute a previously prepared statement. Since prepared statements only exist for the duration of a session, the prepared statement must have been created by a PREPARE statement executed earlier in the current session. If the PREPARE statement that created the statement specified some parameters, a compatible set of parameters must be passed to the EXECUTE statement, or else an error is raised. Note that (unlike functions) prepared statements are not overloaded based on the type or number of their parameters; the name of a prepared statement must be unique within a database session. For more information on the creation and usage of prepared statements, see PREPARE(7). PARAMETERS
name The name of the prepared statement to execute. parameter The actual value of a parameter to the prepared statement. This must be an expression yielding a value that is compatible with the data type of this parameter, as was determined when the prepared statement was created. OUTPUTS
The command tag returned by EXECUTE is that of the prepared statement, and not EXECUTE. EXAMPLES
Examples are given in the EXAMPLES section of the PREPARE(7) documentation. COMPATIBILITY
The SQL standard includes an EXECUTE statement, but it is only for use in embedded SQL. This version of the EXECUTE statement also uses a somewhat different syntax. SEE ALSO
DEALLOCATE(7), PREPARE(7) PostgreSQL 9.2.7 2014-02-17 EXECUTE(7)
All times are GMT -4. The time now is 02:43 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy