Hello Everybody,
I have files; yyyymmdd.log which the data look like this;
"Txid=9426043&MsgTxt=Thankyou&UserId=john&Password=jh2501"
"Txid=9426150&MsgTxt=Thankyou&UserId=john&Password=jh2501"
.
.
.
"Txid=9426200&MsgTxt=Thankyou&UserId=john&Password=jh2501"
Question 1:
How to... (3 Replies)
hello people,
All my servers have 4 mounts with this norme. For example, if my hostname is siroe.
df -h | grep `hostname`
/dev/dsk/c1t3d0s6 404G 399G 800M 100% /siroe3
/dev/dsk/c1t2d0s6 404G 399G 800M 100% /siroe2
/dev/md/dsk/d6 20G 812M 19G ... (3 Replies)
Instead of using the following command
#dmesg | grep -v sendmail | grep -v xntpd
How can I use just one grep -v and give both arguments.
Please suggest
thanks (4 Replies)
Hello,
Is there a way in grep to remember patterns?
For eg: int a,b,c,d,a;
If a variable is declared twice, like in the previous example, I should be able to print only those lines.
Is there a way to print only the lines where the variable name occurs more than once, using grep... (1 Reply)
i have files with "DOMAINSOLVER ACMS" with any number of spaces in between the two words on its own line and i can find it with the following:
grep -c "DOMAINSOLVER* ACMS" $FILENAMEbut i need to exclude any lines matching: "$DOMAINSOLVER". i've tried a variety of quoting and escaping with no luck.... (4 Replies)
is there anyway i can ask grep to only get the first line?
as in the top command line
line 1 <-- just grep this line
line 2
line 3
---------- Post updated at 04:24 PM ---------- Previous update was at 04:19 PM ----------
nvm.. found out that i can do it with
|head (12 Replies)
Hello all,
I'm trying to grep the string "scott" from all files whose names are like srvr*.log and that were created "Nov 15"...I'm trying the following command but throws an error message...seems like the syntax is incorrect..
grep scott < ls -l srvr*.log|grep "Nov 15"
Thanks for your... (9 Replies)
My grep returns a row of data like this:
75=20130130;60=074338;61=985;511=55473883;452=115439;62=196;267=1;
Is there a way for the grep to only return 60="something" and 511="something" ?
Thanks in advance. (10 Replies)
Discussion started by: Carl2013
10 Replies
LEARN ABOUT PHP
exec
EXEC(3) 1 EXEC(3)exec - Execute an external programSYNOPSIS
string exec (string $command, [array &$output], [int &$return_var])
DESCRIPTION exec(3) executes the given $command.
PARAMETERS
o $command
- The command that will be executed.
o $output
- If the $output argument is present, then the specified array will be filled with every line of output from the command. Trailing
whitespace, such as
, is not included in this array. Note that if the array already contains some elements, exec(3) will append
to the end of the array. If you do not want the function to append elements, call unset(3) on the array before passing it to
exec(3).
o $return_var
- If the $return_var argument is present along with the $output argument, then the return status of the executed command will be
written to this variable.
RETURN VALUES
The last line from the result of the command. If you need to execute a command and have all the data from the command passed directly back
without any interference, use the passthru(3) function.
To get the output of the executed command, be sure to set and use the $output parameter.
EXAMPLES
Example #1
An exec(3) example
<?php
// outputs the username that owns the running php/httpd process
// (on a system with the "whoami" executable in the path)
echo exec('whoami');
?>
NOTES
Warning
When allowing user-supplied data to be passed to this function, use escapeshellarg(3) or escapeshellcmd(3) to ensure that users can-
not trick the system into executing arbitrary commands.
Note
If a program is started with this function, in order for it to continue running in the background, the output of the program must be
redirected to a file or another output stream. Failing to do so will cause PHP to hang until the execution of the program ends.
Note
When safe mode is enabled, you can only execute files within the safe_mode_exec_dir. For practical reasons, it is currently not
allowed to have .. components in the path to the executable.
Warning
With safe mode enabled, the command string is escaped with escapeshellcmd(3). Thus, echo y | echo x becomes echo y | echo x.
SEE ALSO system(3), passthru(3), escapeshellcmd(3), pcntl_exec(3), backtick operator.
PHP Documentation Group EXEC(3)