Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Check if PID exists

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Check if PID exists
# 15  
Old 03-11-2013
the u can try pls correct me if im wrong

Code:
ps -ef | awk $2 ~/somepid/ '{print $2}' >> tmp

c=`wc -l tmp`

the check 

if [ c -gt 0]
then 
echo " process exists"
else
echo " doesnot exist"

# 16  
Old 03-11-2013
Quote:
Originally Posted by zozoo
the u can try pls correct me if im wrong

Code:
ps -ef | awk $2 ~/somepid/ '{print $2}' >> tmp

What if the pid is 345 and it doesn't exist but there is a different process running with a pid of 2345? In that case, a false positive.

Why not just use ps -p pid and be done with it?

Regards,
Alister
# 17  
Old 03-11-2013
Checkpid, user, appname:
Code:
pc=`ps -fp $pid | grep -c ' $USER .*appname"`
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Check if file exists

I need to check whether a file exists and has been changed. The file should contain a specific string. The file should also have been changed within the last ten seconds. How do I do that? (3 Replies)
Discussion started by: locoroco
3 Replies

2. Shell Programming and Scripting

To check if file exists

Hi, I have the below code written. However I am not getting the desired output I am checking if the particular path has file in it. #!/bin/bash ls -l /IRS2/IRS2_ODI/INFILE/*LS* 1>/dev/null 2>/dev/null if then echo $? echo "File Exists" fi ... (3 Replies)
Discussion started by: Shanmugapriya D
3 Replies

3. Shell Programming and Scripting

Check if file exists or not

Hi, I want to check if the file exists or not in the directory. i am trying below code but not working. File="/home/va59657/Account_20090213*.dat" echo "$File" if ]; then echo "file found" else echo "file not found" fi However i am getting file not found even if file exits as... (5 Replies)
Discussion started by: Vivekit82
5 Replies

4. Shell Programming and Scripting

How to check if the URL exists?

Hi, I need to check if the URL exists. Below is my OS: SunOS mymac1 Generic_148888-04 sun4v sparc SUNW,SPARC-Enterprise-T5220 I do not have the curl set in the profile nor am i aware about its path. But i have wget. Please help me with params for the same. Can you help me check if... (6 Replies)
Discussion started by: mohtashims
6 Replies

5. UNIX for Dummies Questions & Answers

How to check if a number exists?

Hello, May i please know how do i check if the given input argument is one of the listed numbers then success else failure. I am using bash shell. if then echo "success" else echo "failure" fi Thank you. (2 Replies)
Discussion started by: Ariean
2 Replies

6. Shell Programming and Scripting

File exists, but cannot be opened.How to check- whether it could be opened to read when it exists

Hi #Testing for file existence if ; then echo 'SCHOOL data is available for processing' else echo 'SCHOOL DATA IS NOT AVAILABLE FOR PROCESSING' : i wrote a script, where it begins by checking if file exists or not. If it exists, it truncates the database... (2 Replies)
Discussion started by: rxg
2 Replies

7. Shell Programming and Scripting

check if files exists

i writing a program that checks if any .txt files exist in the current directory if it does, then it lists the files... i have got everything right, except the validation part doesnt work! .... if then ls *.txt else echo "file not found" everytime it tells me file not found!! by... (3 Replies)
Discussion started by: bshell_1214
3 Replies

8. Shell Programming and Scripting

Check to see if a file exists?

Hi. I'd like to have an IF-Then-Else statement where I can check to see if a file exists? We have the Bourne Shell by default. I'm looking for the syntax to do something like this: if myfile.txt exists then ...my code else ...my code end if Any help would be greatly... (5 Replies)
Discussion started by: buechler66
5 Replies

9. Shell Programming and Scripting

How to check if database exists?

Hi folks! First off I'm working with a Sybase DB. I'm using you're basic ISQL command to connect to my Sybase DB... isql -S$DB_SERVER -D$DB_NAME -U$DB_USR -P$DB_PWD <<!EOF > $log_file My question is, is there a way to determine if a database exists using shell script? For example, if... (2 Replies)
Discussion started by: Fatbob
2 Replies

10. Shell Programming and Scripting

How to check if a direcorty exists?

Hi Good people :D How do I check if a directory exists, if it does then carry on rest of the script, otherwise exit. ------------- cd $mainfolder/system1 #unzips files arrived in last 24 hrs into temp directory find * -mmin -1440 -exec unzip {} \; I'd like to check here if temp... (2 Replies)
Discussion started by: SunnyK
2 Replies
Login or Register to Ask a Question