On Windows – Example trying to find which process is listening on port 1433 Show if any process is listening on port 1433 for example c:\temp> netstat -ano | find /I “1433” | find /I “LISTEN” Proto Local Address Foreign Address State PID TCP 0.0.0.0:1433 0.0.0.0:0 LISTENING 6244 Using tlist or task manager one can find the PID (last column) from the above command to … Continue reading How to find the process id listening on a port?
# lists jobs in current session $ jobs # start job 1 (sleeps for 200 seconds) $ sleep 200 # suspended job 1 using control-z [1] + Stopped sleep 200 # start job 2 (sleeps for 400 seconds) $ sleep 400 # suspended job 2 using control-z [2] + Stopped sleep 400 # lists jobs in current session shows the jobs are suspended i.e. not … Continue reading process control
There are multiple ways to place a program in background mode. Background mode is when the program runs and returns you the prompt back and the program is till running but it can be tied to the session or untied to the shell. The following scenario is when a process is tied to a shell: Example: $ sleep 60 & In the above example you … Continue reading Background process
— Get process id of current process $ echo $$ 6113 — shows process id $ ps PID TTY TIME CMD 2050 pts/2 00:00:00 ps 6113 pts/2 00:00:00 ksh Useful when creating a unique temp file example TEMPFILE=/tmp/tmpfile.$$ — Get process id of last background id $ sleep 10 & [1] 2078 $ echo $! 2078 — Print parent process id $ print $PPID 6048 Continue reading ksh – Process
On AIX — List number of max processes allowed per user $ /home/oracle:$ /usr/sbin/lsattr -E -l sys0 -a maxuproc maxuproc 2048 Maximum number of PROCESSES allowed per user True The value returned by ulimit may not always match so use the value returned by lsattr. To change the value of user process by running chdev $ chdev -l sys0 -a maxumproc=new_limit Continue reading How to find/set max processes allowed per user on OS-level?
C-shell (csh) Example: set prompt=”[%n@%m %c] \! %” oracle@localhost ~] 39 % In this above example sets prompt to display username, hostname, current working directory and history number. %n – username, %m – hostname, %c – pwd, \! – history number K-shell (ksh) Example: $ export PS1=’$USER [$PWD] $ ‘ oracle [/home] $ In the above example, sets prompt to display username and current working … Continue reading How to change unix prompt?
Using the following script it will find all version of a command in $PATH (from Unix Power Tools) $ cat /tmp/whereiz #!/bin/sh testx=”test -x” fixpath=”`echo $PATH | sed \ -e 's/^:/.:/' \ -e 's/::/:.:/g' \ -e 's/:$/:./'`” # echo $fixpath IFS=”: ” for command do where=”” for direc in $fixpath do $testx $direc/$command && where=”$where $direc/$command” done case “$where” in ?*) echo $where ;; esac … Continue reading whereiz – find all version of a command
