When I don't know how to undo something, I often search how to DO it. It worked today with linux hide processes from other users - Recherche Google.
So if hidepid allows you to hide processes, it should do the opposite if deactivated.
Apparently hidepid is not in use though and I can only see 4 processes wether I use ls /proc or ps:
But I'm still going to try to tweak hidepid and indeed I can see more processes with ls /proc but not with ps:
Surprisingly, hidepid level 1 gives me more permission but levels 0 and 2 are exactly the same:
I'm still investigating but level 0 should give me all permissions like in old behavior.
I wasn't sure if I should post it here of in the Shell Script category, but I figured it was definitely a newbie question.
I'm trying to write a script that will check for the existence of a specific file (or for any files within the directory) and then take specific actions. I've removed all... (2 Replies)
Hey all,
I have total new with shell scripting so I don't know if what I need to do even possible, here it is...for a duration of time (say...1 hour) I need to check for the existence of a particular file, if it exists then I will invoke a java program or I will continue to check until a)... (2 Replies)
Hello,
I have this process app.fcgi and a directory containing images. I'd like to ensure that only app.cgi can access those images and more generally that folder.Thanks! (1 Reply)
Hi
I want to check a particular file is available or not. But i know only the pattern of that file sat AB1234*.txt.I need the latest file name and it ll be used in the script. How can i do this using ls -ltr command.
Thanks,
LathishSundar V (2 Replies)
Hi,
I want to make a bash script which is running like :
1.sh http://www. google.com
and check if the url does exist printing a message.
I want to save the source code of this page in a file.
Could you help me ? (4 Replies)
Hi
I'm using the below command in shell script to check for file exists in the path
if
.....
fi
path and test are variables
path and the file exists but the commands inside if condition is executed (! operator used)
Is the above way of checking for file existence is correct?
... (4 Replies)
Hope someone can help me on this
In a directory ,files are dynamically generated.I need a script to do the following
if files are not received for more than 2 hours or if the received file is empty
then do something
How can I put that in a script.Thank you
eg. in cd /dir_name the... (13 Replies)
I'm on AIX. I have triggered an infinite loop process (to keep looking for input file availability for further process). At present only I can kill the process.
In case my colleague wants to kill the process for any reason, how do I provide permission to others to kill the process?
Currently... (3 Replies)
Discussion started by: krishmaths
3 Replies
LEARN ABOUT XFREE86
pstree
PSTREE(1) User Commands PSTREE(1)NAME
pstree - display a tree of processes
SYNOPSIS
pstree [-a, --arguments] [-c, --compact] [-h, --highlight-all, -Hpid, --highlight-pid pid] [-g] --show-pgids] [-l, --long]
[-n, --numeric-sort] [-N, --ns-sortns [-p, --show-pids] [-s, --show-parents] [-S, --ns-changes] [-t, --thread-names] [-T, --hide-threads]
[-u, --uid-changes] [-Z, --security-context] [-A, --ascii, -G, --vt100, -U, --unicode] [pid, user]
pstree -V, --version
DESCRIPTION
pstree shows running processes as a tree. The tree is rooted at either pid or init if pid is omitted. If a user name is specified, all
process trees rooted at processes owned by that user are shown.
pstree visually merges identical branches by putting them in square brackets and prefixing them with the repetition count, e.g.
init-+-getty
|-getty
|-getty
`-getty
becomes
init---4*[getty]
Child threads of a process are found under the parent process and are shown with the process name in curly braces, e.g.
icecast2---13*[{icecast2}]
If pstree is called as pstree.x11 then it will prompt the user at the end of the line to press return and will not return until that has
happened. This is useful for when pstree is run in a xterminal.
Certain kernel or mount parameters, such as the hidepid option for procfs, will hide information for some processes. In these situations
pstree will attempt to build the tree without this information, showing process names as question marks.
OPTIONS -a Show command line arguments. If the command line of a process is swapped out, that process is shown in parentheses. -a implicitly
disables compaction for processes but not threads.
-A Use ASCII characters to draw the tree.
-c Disable compaction of identical subtrees. By default, subtrees are compacted whenever possible.
-G Use VT100 line drawing characters.
-h Highlight the current process and its ancestors. This is a no-op if the terminal doesn't support highlighting or if neither the
current process nor any of its ancestors are in the subtree being shown.
-H Like -h, but highlight the specified process instead. Unlike with -h, pstree fails when using -H if highlighting is not available.
-g Show PGIDs. Process Group IDs are shown as decimal numbers in parentheses after each process name. -g implicitly disables com-
paction. If both PIDs and PGIDs are displayed then PIDs are shown first.
-l Display long lines. By default, lines are truncated to either the COLUMNS environment variable or the display width. If neither of
these methods work, the default of 132 columns is used.
-n Sort processes with the same ancestor by PID instead of by name. (Numeric sort.)
-N Show individual trees for each namespace of the type specified. The available types are: ipc, mnt, net, pid, user, uts. Regular
users don't have access to other users' processes information, so the output will be limited.
-p Show PIDs. PIDs are shown as decimal numbers in parentheses after each process name. -p implicitly disables compaction.
-s Show parent processes of the specified process.
-S Show namespaces transitions. Like -N, the output is limited when running as a regular user.
-t Show full names for threads when available.
-T Hide threads and only show processes.
-u Show uid transitions. Whenever the uid of a process differs from the uid of its parent, the new uid is shown in parentheses after
the process name.
-U Use UTF-8 (Unicode) line drawing characters. Under Linux 1.1-54 and above, UTF-8 mode is entered on the console with echo -e
' 33%8' and left with echo -e ' 33%@'
-V Display version information.
-Z (SELinux) Show security context for each process. This flag will only work if pstree is compiled with SELinux support.
FILES
/proc location of the proc file system
BUGS
Some character sets may be incompatible with the VT100 characters.
SEE ALSO ps(1), top(1).
psmisc 2016-06-18 PSTREE(1)