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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 302760483 by RudiC on Thursday 24th of January 2013 05:43:04 AM
Old 01-24-2013
You should allocate a char variable, fill it with the string constant "whereis " (e.g. sprintf) and the contents of your user input variable (e.g. strcpy), and supply that to the system call.
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mrd(1)							      General Commands Manual							    mrd(1)

NAME
mrd - mtools utility to remove a DOS directory SYNOPSIS
mrd msdosdirectory [msdosdirectories...] DESCRIPTION
The mrd command removes a directory from a DOS file system. If the directory is not empty, an error occurs. Unlike DOS conventions, this command allows multiple arguments. DOS subdirectory names that contain the '/' or '' separator are supported. If you use the '' separator or wildcards, you must enclose file names in quotes to protect them from the shell. The mcd command can be used to establish the device and the current working directory (relative to DOS), otherwise the default is A:. EXIT STATUS
The following exit values are returned: Success. Failure. ENVIRONMENT VARIABLES
The following environment variables affect the execution of mrd: If set, this variable names the file that contains the name of the current mtools working directory as established by the mcd command. If this variable is not set, the file $HOME/.mcwd is used. FILES
Contains the name of the current mtools working directory as established by the mcd command. If this file does not exist, the default mtools working directory is A:. Executable file SEE ALSO
Commands: mcd(1), mmd(1), mtools(1) mrd(1)
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