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What is BSD syntax in Linux?
Linux and the BSDs are both Unix-like operating systems. BSD stands for “Berkeley Software Distribution,” as it was originally a set of modifications to Bell Unix created at the University of California, Berkeley. It eventually grew into a complete operating system and now there are multiple different BSDs.
What are various options of ps command in Linux?
Options
| Option | Description |
|---|---|
| -d | Displays all processes with the exception of session leaders. |
| -e | Displays all processes. |
| -f | Displays a full listing. |
| -glist | Displays data for the list of group leader IDs. |
Is Linux derived from BSD?
Linux comes under the Free Software Foundation’s GPL (GNU General Public License). The operating systems based on BSD are licensed under the BSD License (known as FreeBSD License). GPL promotes Richard Stallman’s thinking that software should be made free, in the sense of freedom, by making it accessible to everyone.
Where does the ps command in BSD come from?
Your ps command comes from a software collection called procps and I guess that they want to mimic the option style specific for a certain platform. So for the UNIX guys it has – options. For BSD it also accepts something like ps aux and so on.
What kind of options does Ps-Unix accept?
This version of ps accepts several kinds of options: UNIX options, which may be grouped and must be preceded by a dash. BSD options, which may be grouped and must not be used with a dash. GNU long options, which are preceded by two dashes. Options of different types may be freely mixed, but conflicts can appear.
How to use the ps command in Ubuntu?
In the manual for the ps command on Ubuntu there is this text: 1 UNIX options, which may be grouped and must be preceded by a dash. 2 BSD options, which may be grouped and must not be used with a dash. 3 GNU long options, which are preceded by two dashes.
What kind of options does Debian PS accept?
This version of ps accepts several kinds of options: UNIX options, which may be grouped and must be preceded by a dash. BSD options, which may be grouped and must not be used with a dash. GNU long options, which are preceded by two dashes.