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Top Forums Shell Programming and Scripting Error handling in Unix shell scripting Post 302350597 by rksingh003 on Friday 4th of September 2009 09:57:10 AM
Old 09-04-2009
Error handling in Unix shell scripting


I have written a shell script and suppose there is any error in the script. How i can do exception handling in shell script.for example i have below code

sqlplus -s <<uid>>/<<pwd>>@<<$ORACLE_SID>> <<EOF > 1_pid1.log
set pagesize 0
set feedback off
set heading off
set linesize 200
@ pid_file.sql

when i run above code it should create log file with 1_pid1.log
but it was not working becuase at the last line i did spelling mistake and writtern "EOD" instead off "EOF".

So i just want to know, how can i do error handling in unix shell script.

Thanks in Advance,

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RBASH(1)						      General Commands Manual							  RBASH(1)

rbash - restricted bash, see bash(1) RESTRICTED SHELL
If bash is started with the name rbash, or the -r option is supplied at invocation, the shell becomes restricted. A restricted shell is used to set up an environment more controlled than the standard shell. It behaves identically to bash with the exception that the follow- ing are disallowed or not performed: o changing directories with cd o setting or unsetting the values of SHELL, PATH, ENV, or BASH_ENV o specifying command names containing / o specifying a file name containing a / as an argument to the . builtin command o specifying a filename containing a slash as an argument to the -p option to the hash builtin command o importing function definitions from the shell environment at startup o parsing the value of SHELLOPTS from the shell environment at startup o redirecting output using the >, >|, <>, >&, &>, and >> redirection operators o using the exec builtin command to replace the shell with another command o adding or deleting builtin commands with the -f and -d options to the enable builtin command o using the enable builtin command to enable disabled shell builtins o specifying the -p option to the command builtin command o turning off restricted mode with set +r or set +o restricted. These restrictions are enforced after any startup files are read. When a command that is found to be a shell script is executed, rbash turns off any restrictions in the shell spawned to execute the script. SEE ALSO
bash(1) GNU Bash-4.0 2004 Apr 20 RBASH(1)

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