($VERBOSE = 1 && $LOG = 1) => BOTH output (ALL to console && ALL to file.log)
For now i got to understand i can do the following to put EVERYTHING to a file
Code:
exec > file.log
exec 2>&1
Sure it is a very known argument.. but i'd like to hear some opinion
Code:
logfile=file.log
if [ $VERBOSE = 0 -a $LOG = 0 ] ; then
exec 2>> /dev/null
elif [ $VERBOSE = 1 -a $LOG = 0 ] ; then
:
elif [ $VERBOSE = 0 -a $LOG = 1 ] ; then
>> $logfile 2>&1
else
echo "output goes to $logfile"
>> $logfile
fi
For the latter case to go to *both* file and console, you would need a pipe to tee for the following code, e.g. by means of enclosing the code with { }:
Code:
{
# block starts, see redirection at the end
: code
# redirect this block to
} 2>&1 | tee -a $logfile
Hi,
I'm having trouble with my script. I have to select different choices without any interaction from a menu that looks like :
a - xxxxxxxxxxxxxx
b - xxxxxxxxxxxxxx
c - xxxxxxxxxxxxxx
d - xxxxxxxxxxxxxx
I tried things like :
echo "a" >&0
read < echo "a"
but none worked. Any... (4 Replies)
Hi all
I've run into a snag in a program of mine where part of what I entered in at the start of run-time, instead of the current value within printf() is being printed out.
After failing with fflush() and setbuf(), I tried the following approach
void BufferFlusher()
{
int in=0;... (9 Replies)
I have an executable that, depending on its input, outputs to either one file or several. It usually prints nothing on screen. The usual way to call this program is to specify an input and output filenames, like this:
./executable.exe -i inputfile -o outputfileIt will then try to use the output... (1 Reply)
Hi
I'm trying to do something on the bash command line that I will later put into a bash shell script.
I'm trying to take a program that reads stdin (using getline) and be able to keep it running in the background and fire "commands" to it. So what I thought I should do was to try taking... (3 Replies)
Hi,
i know how to
a) redirect stdout and stderr to one file,
b) and write to two files concurrently with same output using tee command
Now, i want to do both the above together.
I have a script and it should write both stdout and stderr in one file and also write the same content to... (8 Replies)
Hi,
I am working on a project where I have to generate and execute nasm code on-the-fly. I generate the code in a file program.asm and then execute it.This output is to stdout which i redirect to an output file which i read back to compare results:
system("nasm -f elf program.asm >... (5 Replies)
Hi,
i am using the below program to read from the standard input or to write to standard out put.
i know that using highlevel functions this can be done better than what i have done here.
i just want to know is there any other method by which i find the exact number of characters ( this... (3 Replies)
Hi all,
I've been looking around for this for a while and can't seem to find a satifactory way to do what I want:
I would like to assign the output of stdout to a variable and that of stderr to another one, and this without using temporary files/named pipes. In other words be able to assign... (4 Replies)
Hallo,
i have a script like:
if ;then
echo "OK"
else
echo "ERROR $2 is missing"
fi;
if ;then
touch $2
fi;
if ;then
cat $1 | grep xy > $2 (1 Reply)
Discussion started by: eightball
1 Replies
LEARN ABOUT CENTOS
cpanplus::error
CPANPLUS::Error(3) User Contributed Perl Documentation CPANPLUS::Error(3)NAME
CPANPLUS::Error - error handling for CPANPLUS
SYNOPSIS
use CPANPLUS::Error qw[cp_msg cp_error];
DESCRIPTION
This module provides the error handling code for the CPANPLUS libraries, and is mainly intended for internal use.
FUNCTIONS
cp_msg("message string" [,VERBOSE])
Records a message on the stack, and prints it to "STDOUT" (or actually $MSG_FH, see the "GLOBAL VARIABLES" section below), if the "VERBOSE"
option is true. The "VERBOSE" option defaults to false.
msg()
An alias for "cp_msg".
cp_error("error string" [,VERBOSE])
Records an error on the stack, and prints it to "STDERR" (or actually $ERROR_FH, see the "GLOBAL VARIABLES" sections below), if the
"VERBOSE" option is true. The "VERBOSE" options defaults to true.
error()
An alias for "cp_error".
CLASS METHODS
CPANPLUS::Error->stack()
Retrieves all the items on the stack. Since "CPANPLUS::Error" is implemented using "Log::Message", consult its manpage for the function
"retrieve" to see what is returned and how to use the items.
CPANPLUS::Error->stack_as_string([TRACE])
Returns the whole stack as a printable string. If the "TRACE" option is true all items are returned with "Carp::longmess" output, rather
than just the message. "TRACE" defaults to false.
CPANPLUS::Error->flush()
Removes all the items from the stack and returns them. Since "CPANPLUS::Error" is implemented using "Log::Message", consult its manpage
for the function "retrieve" to see what is returned and how to use the items.
GLOBAL VARIABLES
$ERROR_FH
This is the filehandle all the messages sent to "error()" are being printed. This defaults to *STDERR.
$MSG_FH
This is the filehandle all the messages sent to "msg()" are being printed. This default to *STDOUT.
perl v5.16.3 2013-05-20 CPANPLUS::Error(3)
04-10-2017
