-bash-3.2$ pstree 27108 Script.sh---java---15*[{java}] What does this 15* mean here, also any meanings defined for [] & {} in the context of command?
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2 Answers
Its right there in the man page:
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 pro- cesses 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}] In your case, the process 27108 was started by the script Script.sh. The Script.sh created a java process which spawned another 15 java threads.
A ps -eLf | grep java | wc -l should returned you a count around the number 15.
man pstree:
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}] So, 15 threads of java process.
