When you are looking at sed s expressions, always find the delimiters first.
In this case left is \("[^"]*\),\([^"]*"\).
Break that further down by noticing the syntax \( ... \).
These capture text in the middle so it can be printed with \1 and \2 on the right.
Trying to install something. Can someone explain what this means?
chmod -R a+r .
chmod -R a+w logo.gif tempdir/ templates_c/
I recognize that file permissions are being changed (chmod), but beyond that, it's Greek to me. (6 Replies)
Hi all,
i needed some help in understanding a few procedures and how exactly is the sequence?
FINISHED="Done"
COLUMNS=$( stty -a | head -n 2 | cut -d " " -f2 |cut -d " " -f4 )
COLS=$((${COLUMNS} -${#FINISHED} - 5))
RET_ARR="\010"
KILLLINE=${RET_ARR}${RET_ARR}
for i in $(seq 1... (0 Replies)
We use a UNIX-based system (Lawson) at work and I was given this command to request a data extract from the db admin. The only thing I really understand is the last line as it appears to be joining the files created from the first three lines into one. Is there anyone who can help me breakdown the... (4 Replies)
Guys,
I am trying to understand the sed command here.
adx001 $ a=/clocal/dctrdata/user/dctrdat1/trdroot/recouncil
adx001 $ b=`echo $a | sed 's/\//\\\\\//g'`
adx001 $ echo $b
\/clocal\/dctrdata\/user\/dctrdat1\/trdroot\/recouncil
The sed command i took it from the script.
Please... (3 Replies)
Hi Guys,
I like to know if i have a process which triggers 10 different child processes.
How to identify out of the 11 processes running which is the parent process and what are the child process?
And if i kill the parent process will the child process be killed.. if not is there a way to... (2 Replies)
hi
i was moving a file from one directory to another with the following cmmand
mv /home/hsghh/dfd/parent/file.txt .
while doing so i i accidently
mv /home/hsghh/dfd/dfd .
although i gave ctrl c and terminate the move command some of the file are missing in the parent directory and... (1 Reply)
There is a function called start:
start()
{
echo -n $"Sending Startup Email: "
echo "${RESTARTBODY}" | mutt -s "${RESTARTSUBJECT}" ${EMAIL}
RETVAL=$?
if ; then
touch ${LOCKFILE}
success
else
failure
fi
echo
return ${RETVAL}
}
Can anyone explain what the bold part of the... (3 Replies)
Hi
I have a questions related 2 commands : 'du' and 'ls'.
Why is the difference between output of 'du' and 'ls' cmd's ?
Command 'du' :
------------------
jakubn@server1 /home/jakubn $ du -s *
4 engine.ksh
1331 scripts
'du -s *' ---> shows block count size on disk (512 Bytes... (5 Replies)
Hi Friends,
I need a small help in understanding the below sed command.
$ cat t4.txt
1 root 1 58 0 888K 368K sleep 4:06 0.00% init
1 root 1 58 0 888K 368K sleep 4:06 0.00% init last
$ sed 's/*$//' t4.txt
1 root 1 58 0 888K ... (3 Replies)
Hello
I am working on a Change request and Stuck at a point. The below awk command is used in the function.
float_test ( ) {
echo | awk 'END { exit ( !( '"$1"')); }'
}
I understand that awk 'END' is used to add one line at the end and exit is used to end the script with an error... (4 Replies)
Discussion started by: rahul2662
4 Replies
LEARN ABOUT PHP
variant_idiv
VARIANT_IDIV(3) 1 VARIANT_IDIV(3)variant_idiv - Converts variants to integers and then returns the result from dividing themSYNOPSIS
mixed variant_idiv (mixed $left, mixed $right)
DESCRIPTION
Converts $left and $right to integer values, and then performs integer division.
PARAMETERS
o $left
- The left operand.
o $right
- The right operand.
Note
As with all the variant arithmetic functions, the parameters for this function can be either a PHP native type (integer, string,
floating point, boolean or NULL), or an instance of a COM, VARIANT or DOTNET class. PHP native types will be converted to variants
using the same rules as found in the constructor for the "VARIANT" class. COM and DOTNET objects will have the value of their
default property taken and used as the variant value.
The variant arithmetic functions are wrappers around the similarly named functions in the COM library; for more information on
these functions, consult the MSDN library. The PHP functions are named slightly differently; for example variant_add(3) in PHP cor-
responds to VarAdd() in the MSDN documentation.
RETURN VALUES
Variant Integer Division Rules
+--------------------------------------------------+---------------------------------------------------+
| If | |
| | |
| | Then |
| | |
+--------------------------------------------------+---------------------------------------------------+
|Both expressions are of the string, date, charac- | |
|ter, boolean type | |
| | |
| | Division and integer is returned |
| | |
|One expression is a string type and the other a | |
|character | |
| | |
| | Division |
| | |
|One expression is numeric and the other is a | |
|string | |
| | |
| | Division |
| | |
| Both expressions are numeric | |
| | |
| | Division |
| | |
| Either expression is NULL | |
| | |
| | NULL is returned |
| | |
| Both expressions are empty | |
| | |
| | A com_exception with code DISP_E_DIVBYZERO is |
| | thrown |
| | |
+--------------------------------------------------+---------------------------------------------------+
SEE ALSO variant_div(3).
PHP Documentation Group VARIANT_IDIV(3)