Record the Signal Type or Number in Bash Trap function

Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Record the Signal Type or Number in Bash Trap function
# 1  
Old 09-18-2009
Record the Signal Type or Number in Bash Trap function

In my Bash script I have an exit/cleanup function in a trap statement like:
  • trap exitCleanup 1 2 3 6 15 25

Is there anyway to capture which signal # has occurred to record in a log file. Please note I am trying to avoid something like:
  • trap 'mySignal=1; exitCleanup' 1
  • trap 'mySignal=2; exitCleanup' 2
  • trap 'mySignal=3; exitCleanup' 3
  • trap 'mySignal=6; exitCleanup' 6
  • trap 'mySignal=15; exitCleanup' 15
  • trap 'mySignal=25; exitCleanup' 25

I was wondering if there was some BASH Variable that I could use like:
  • trap 'mySignal=${BASH_LAST_SIGNAL}; exitCleanup' 25
# 2  
Old 09-18-2009
According to bash man page:

The return value of a simple command is its exit status, or 128+n if
the command is terminated by signal n.


Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Programming

Perl: trap signal 'exit': why I am not able to have it work??

First time trying to work with signals in Perl. Reviewing example I try it, but not able to get it work for 'exit'. I hope, I am correct, assuming, that the ending any code by exit $return_code; the $SIG{EXIT} should be de-referenced and processed?! So, I have such code, that, I assume,... (5 Replies)
Discussion started by: alex_5161
5 Replies

2. Shell Programming and Scripting

Quiting running process without catching TRAP signal

Hi, I would like to ask, if is it possible to quit running loop in the script any other way than catching the trap signal. Ctrl-C ends only current running instance of process but not whole script. Any clues? (3 Replies)
Discussion started by: smoofy
3 Replies

3. Shell Programming and Scripting

How trap a signal in shell script?

Hi , i have a scenario where...i have to put a check where if script is executing more than 15mins i have to kill that script and n retry again 2nd time. i this case i can use background process to do it but i feel trap will be the efficent way to do so... but i dont know much about it... (1 Reply)
Discussion started by: crackthehit007
1 Replies

4. Shell Programming and Scripting

How to Trap kill -9 signal

I just want to trap kill -9 signal issued by any of user from any terminal and just capture that user terminal who had raised this kill -9 command (1 Reply)
Discussion started by: puneet.goel
1 Replies

5. SCO

PANIC: k_trap - Kernel mode trap type 0x0000000E

Hi, i'm another question: I'm a directory /usr/data on my server sco unix 5.0.5: # du /usr/data 4386948 /usr/data I'm tried to connect to ftp directory /usr/data to this server and: PANIC: k_trap - Kernel mode trap type 0x0000000E Cannot dump 262040 pages to dumpdev hd(1/41):space... (3 Replies)
Discussion started by: sebpes
3 Replies

6. UNIX for Dummies Questions & Answers

trap signal on user logout ?

hi all , I want to execute a script on the user logout(using gnome environment). Is ther any way to execute it through TRAP stmt? (2 Replies)
Discussion started by: harsha10
2 Replies

7. Shell Programming and Scripting

trap signal for enter key

hi , What is the trap signal for "ENTER key"? (4 Replies)
Discussion started by: Sreejith_VK
4 Replies

8. Shell Programming and Scripting

how to trap unix signal if the process killed/interupt occured in bash...

hey champs, I have a process running.......i have to catch/trap the signal when the process is being interupted/killed (kill -9 pid) option...... how can i achieve the same thru my process........ let my process is and it supposed to take 13 mins to complete, but due to some problem ,... (15 Replies)
Discussion started by: manas_ranjan
15 Replies

9. Shell Programming and Scripting

Fmli Signal/trap

Does anyone know how to program signals in fmli? My fmli script goes in loop when the telnet session is closed. When I start the script from the prompt the issue do not happen. But when it is started by the login process it hags. That's why I want to program the SIGHUP to exit/finish the script.... (0 Replies)
Discussion started by: Marcos Brito
0 Replies

10. Filesystems, Disks and Memory

k_trap - kernel mode trap type 0x0000000E

HELP is urgently required, I run on SCO Unix 3 and this is the panic message that I get every time that I reboot 10U k_trap - kernel mode trap type 0x0000000E I have checked the swap already having the following results: #swap -l path dev swaplo blocks free... (3 Replies)
Discussion started by: alex_slb
3 Replies
Login or Register to Ask a Question