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Top Forums UNIX for Dummies Questions & Answers I am not able to use variables in system command in a C program Post 302760495 by dhanda2601 on Thursday 24th of January 2013 06:04:42 AM
Old 01-24-2013
i have already allocate the variable for that my code is
Code:
char cmd[20];
printf("enter you string);
scanf("%s",cmd); 
system("whereis cmd");


this cmd is not working for example.
if give the input as "ls" to cmd variable .
but, that variable is not working in the system command this is my problem

thanks in advance

Last edited by Scott; 01-24-2013 at 07:11 AM.. Reason: Code tags
 

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NAME
uadmin - administrative control SYNOPSIS
/usr/sbin/uadmin cmd fcn [mdep] /sbin/uadmin cmd fcn [mdep] The uadmin command provides control for basic administrative functions. This command is tightly coupled to the system administration proce- dures and is not intended for general use. It may be invoked only by the super-user. Both the cmd (command) and fcn (function) arguments are converted to integers and passed to the uadmin system call. The optional mdep (machine dependent) argument is only available for the cmd values of 1 (A_REBOOT), 2 (A_SHUTDOWN), or 5 (A_DUMP). For any other cmd value, no mdep command-line argument is allowed. When passing an mdep value that contains whitespaces, the string must be grouped together as a single argument enclosed within quotes, for example: uadmin 1 1 "-s kernel/unix" See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ uadmin(2), attributes(5) On systems, shutting down the system by means of uadmin does not update the boot archive. Avoid using this command after manual editing of files such as /etc/system or driver.conf(4). 11 Apr 2005 uadmin(1M)
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