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The command displays the process identifiers (PIDs) of processes using the specified files or file systems. In the default display mode, each PID is followed by a letter denoting the type of access: c current directory. e executable being run. f open file. F open file for writing. r root directory. m mmap'ed file or shared library
v – Command-line arguments are passed to the function as an array (vector) of pointers. path. The argument specifies the path name of the file to execute as the new process image. Arguments beginning at arg0 are pointers to arguments to be passed to the new process image. The argv value is an array of pointers to arguments. arg0
A shell script can provide a convenient variation of a system command where special environment settings, command options, or post-processing apply automatically, but in a way that allows the new script to still act as a fully normal Unix command. One example would be to create a version of ls, the command to list files, giving it a shorter ...
Commands can be joined on the same line. ; means run the first command and then the next. && means run the first command and, if it succeeds with a 0 return code, run the next. || means run the first command and, if it fails with a non-zero return code, run the next.
time — Run command line and report real, user, and system time elapsed in seconds. timeout — Run command line as a child process, sending child a signal if the command doesn't exit soon enough. top — Show process activity in real time. touch — Update the access and modification times of each FILE to the current time. true — Return zero.
Local shellcode is used by an attacker who has limited access to a machine but can exploit a vulnerability, for example a buffer overflow, in a higher-privileged process on that machine. If successfully executed, the shellcode will provide the attacker access to the machine with the same higher privileges as the targeted process.
In software development, Make is a command-line interface software tool that performs actions ordered by configured dependencies as defined in a configuration file called a makefile. It is commonly used for build automation to build executable code (such as a program or library) from source code.
The Multics shell includes a run command to run a command in an isolated environment. [1] The DEC TOPS-10 [2] and TOPS-20 [3] Command Processor included a RUN command for running executable programs. In the BASIC programming language, RUN is used to start program execution from direct mode, or to start an overlay program from a loader program.