Then let's call it a shortcoming.
It looks like -x mode uses stderr, and can conflict with redirection in the shell code.
It can get messy, yes.
This is also an issue for bash ...
... but since it does not trace redirections, the destination of the trace won't change mid-command.
Quote:
Originally Posted by MadeInGermany
Then, why stderr and not another file descriptor?
I would assume because stderr is known to be reserved for diagnostic and error messages, not data. If an alternative file descriptor were chosen, the possibility for a collision would still exist.
Corona688 makes an excellent point:
Quote:
Originally Posted by Corona688
Being 'clever' about it would make obvious things, like redirecting a trace's output into a file, difficult.
Cleverness would include attempting to detect and handle a collision between the internal tracing descriptor and a script's redirections.
Thank you Alister and Don!
I have been working on a script that captures failures from a "df".
Everything fine, until I wanted to quickly find a mistake in the post processing.
The difficulty was reason enough for me to change to #!/bin/bash
Hello,
Im using the g++(g++ Ubuntu/Linaro 4.4.4-14ubuntu5 4.4.5) and im trying to compile a small snippet code and got into an endless loop.I recompiled that in VS2010 under Windows 7 and the answer is as expected.so i wonder is this a bug of g++?here is my code.
#include<iostream>
using... (5 Replies)
Hi
I am new to this Scripting process and would like to know How can i write a ksh script that will call other ksh scripts and write the output to a file and/or email.
For example
-------
Script ABC
-------
a.ksh
b.ksh
c.ksh
I need to call all three scripts execute them and... (2 Replies)
#!/bin/bash
if then
#echo "infinite loop"
exit 0
fi
when I run this file I get the following error:
./test_infinite_loop: line 5: syntax error near unexpected token `fi'
./test_infinite_loop: line 5: `fi'
:confused: (4 Replies)
Hi All,
I am using Red Hat Linux on my servers. The problem that I am facing is, sometimes the /opt usage on the server shows used percentage as 100% , when actually it is simply 20%.
When I reboot the system, it comes back to 20%.Is this a bug in the system or my settings have gone wrong... (1 Reply)
Is this a bug in ksh on HPUX 11i or is read impromperly documented?
INPUT
Thu Jan 18 09:14:52 PST : CIFS: Virus Detected - File ONTAP_ADMIN$\vol\vol0\DDD\Ventana\Strattoni\Race Stuff\Rumor.exe in share DDD accessed by client CLIENT (111.11.11.111) running as user USER is infected. The filer... (3 Replies)
I've been playing around with sed for a few days now and find that regular expressions never work inside sed s/// on Mac OS 10.2.5. Has anyone else bumped up against this problem?
For example, the "sed" segment of the following always fails no matter how items are escaped:
cd... (12 Replies)