The last example on page Functions suggests that bash cannot do this.
The shell ksh has a namespace facility. So if you wrote your code as in file user6:
then produces:
For a system like:
And, apparently if you needed to use the namespace function outside of the namespace, you could use it as .mine._test.
I have not used the namepace idea before, but it seems to work. See man ksh for some details.
Is it possible to make function variables local?
I mean for example, I have a script variable 'name' and in function I have declared variable 'name'
I need to have script's 'name' have the same value as it was before calling the function with the same declaration.
The way to preserve a... (5 Replies)
Hi All,
Can you please tell me how to execute local function written in a shell script with awk.
i tried with system command but its giving an error. (1 Reply)
Hi,
I have the following statement which parses a string for me and prints it out:
l_comp="dc000.runksh.test.ksh|
$g_sql/dc0000.runksh_test.sql|new.dat|control.ctl"
echo $l_comp | awk -F"|" '{ for ( i = 1; i <= NF; i++) { print $i; } } '
Rather then printing the data, I would like to... (5 Replies)
The following code doesn't work properly which means it doesn't displays remote output.
#!/bin/ksh
#################### Function macAddressFinder ########################
macAddressFinder()
{
`ifconfig -a > ipInterfaces`
`cat ipInterfaces`
}... (2 Replies)
I wrote the following Makefile:
dirs := a b c d
files := $(foreach dir,$(dirs),$(wildcard $(dir)/*))
.PHONY: all
all:
touch $(files)
The first two lines are taken from GNU make tutorial, Section 8.5 The foreach Function. I would expect the recipe
touch $(files)
to be... (2 Replies)
As I know threads share the memory. But, what about the local variables in the thread function? if i call multiple threads would they allocate seperate local variables for themselves?
like
thread_func()
{
int i, j;
string...
}
Are the above local variables defined for each of... (1 Reply)
Hi,
If I have a code like this, what are the potential problems do you see?
const char* const retString() {
return "hello"; /* string literal */
}
My questions are:
a) Since the string literal which is already a constant read only data (cannot be... (4 Replies)
Legends,
I am not able to set "expr" function in ksh script.
Below is the sample code i used, and output is as "Syntax error"
Please help me to come out of it.
OUTPUT (9 Replies)
Hi,
I am working in UEFI EDK2 Bios source. We created a platform related new package in the EDK2 source. I find a strange issue with the platform related code we added.
When I did source level debugging I noticed the
local variable in a C function is not getting created in stack when its... (6 Replies)
Hi All,
Good Day, seeking for your assistance on how to not perform my 2nd, 3rd,4th etc.. function if my 1st function is in else condition.
#Body
function1()
{
if
then
echo "exist"
else
echo "not exist"
}
#if not exist in function1 my all other function will not proceed.... (4 Replies)
Discussion started by: meister29
4 Replies
LEARN ABOUT LINUX
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)