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In computing, Verbose mode is an option available in many computer operating systems and programming languages that provides additional details as to what the computer is doing and what drivers and software it is loading during startup or in programming it would produce detailed output for diagnostic purposes thus makes a program easier to debug.
mv: Moves files or rename files realpath: Returns the resolved absolute or relative path for a file rm: Removes (deletes) files, directories, device nodes and symbolic links rmdir: Removes empty directories shred: Overwrites a file to hide its contents, and optionally deletes it sync: Flushes file system buffers touch: Changes file timestamps ...
On UNIX implementations derived from AT&T UNIX, cp, ln and mv are implemented as a single program with hard-linked binaries. The behavior is selected from the path name argv [0] . This is a common technique by which closely related commands that have been packaged as a unit allow the user to specify the particular course of the intended action.
-v, --verbose verbose mode-a, --all Display all files. Without this option, only files accessed by at least one process are shown.-m, --mount Same as -c. Treat all following path names as files on a mounted file system or block device. All processes accessing files on that file system are listed.
The shell's primary means of debugging. Both xtrace and verbose can be turned off at the same time with the command set -. Verbose: [ set -v | set -o verbose] Prints a command to the terminal as Bash reads it. Bash reads constructs all at once, such as compound commands which include if-fi and case-esac blocks.
-v: Verbose; COMMAND: The command to run (add, delete, change, get, monitor, flush)-net: <dest> is a network address-host: <dest> is host name or address (default)-netmask: the mask of the route <dest>: IP address or host name of the destination <gateway>: IP address or host name of the next-hop router
In Unix and Unix-like operating systems, chmod is the command and system call used to change the access permissions and the special mode flags (the setuid, setgid, and sticky flags) of file system objects (files and directories).
Some shells (e.g. bash) provide a shell builtin that may be used to prevent SIGHUP being sent or propagated to existing jobs, even if they were not started with nohup. In bash, this can be obtained by using disown-h job; using the same builtin without arguments removes the job from the job table, which also implies that the job will not receive the signal.