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 a.sh and it supposed to take 13 mins to complete, but due to some problem ,... (15 Replies)
I'm not talking about the assembly instruction TAS, a better name could be check-and-set :) Anyway, is there a way to simplify the following
if ; then VAR="something"; fi
I have ~20 variables that should be test-and-set like this, and it really looks lame. (2 Replies)
Hi folks,
I have tried to add some trap detection in the below script....this script is used to monitor database activities...in a rather awkward way :rolleyes:....
The idea behind adding trap is that....this script creates lots of temporary files in the running folder to store the count... (1 Reply)
Hey all, I'm a fairly new shell scripter (been writing some very basic stuff for a couple of years once in a blue moon).
I have the need to start 2 or 3 processes from within a bash script when it's run then have the script kind of hang out and wait for the user to ctrl+c and when that happens... (3 Replies)
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... (1 Reply)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
That is the last reply I received from my instructor, and I'm looking for some alternatives.
When using... (2 Replies)
Hello.
In bash, is there a way to trap error "file not found" when a script call another script which is not found; then abort.
Example ( part of script running with -x option set) :
+ return 0
+ RETURN_CODE=0
+ ]
+ /root/bin/200_yast_install/00_reset_yast_install
bash:... (5 Replies)
Hi,
I have 4 parameters passed to my shell and i validate if all four are entered using the following snippet:
if
then echo "Not entered"
else echo "entered"
fi
I get the following output as 'Not entered even when i enter the values for all prompts.
Please advise.
Thanks. (5 Replies)
Could somebody please provide me with verbatim description / purpose of the following ?
set dummy $ac_prog; ac_word=$2
set dummy $ac_tool_prefix; ac_word=$2
could it be written
set dummy $ac_prog;
ac_word=$2
set dummy $ac_tool_prefix;
ac_word=$2 (9 Replies)
Discussion started by: anne
9 Replies
LEARN ABOUT DEBIAN
rbash
RBASH(1) General Commands Manual RBASH(1)NAME
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)