Bash: evaluating $? variable (if statement) Post: 302212398

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

K Shell evaluating value to a variable

Hi, I have the following requirement. V="First" R="V" echo $$R The output should be First. How do i achieve this. how do we evaluate the $R and evaluate it to $V as $R contains V and $V is First. Thanks Vijay

2. UNIX for Dummies Questions & Answers

Conditional statement in bash

I want to combine 2 conditional statements by using -o in bash, but it won't work. if ; then echo "The number needs to be between 0 and $nr" fi Each time i execute the file it says: ./selectCitaat: line 10: syntax error near unexpected token `$1'

3. Shell Programming and Scripting

Evaluating a variable

Does anyone know of a way to force a variable name held in another variable to return the value of the first variable? Best if I give an example, that does not work: /usr/local/bin >cat mike.sh NUM1ref=16 NUM2ref=32 echo "==============" for VAR in NUM1 NUM2 do XXXX=${VAR}ref echo $XXXX...

4. Shell Programming and Scripting

evaluating a variable inside a variable

Hi there, i think im getting myself a little confused and need some help :wall: I am reading in a bunch of variables to my script from an external file and need to validate that a value has been set for each so if you can imagine, the user is required to pass in 4 values...

5. UNIX for Dummies Questions & Answers

Parsing file, reading each line to variable, evaluating date/time stamp of each line

So, the beginning of my script will cat & grep a file with the output directed to a new file. The data I have in this file needs to be parsed, read and evaluated. Basically, I need to identify the latest date/time stamp and then calculate whether or not it is within 15 minutes of the current...

6. Shell Programming and Scripting

bash if statement help needed

Hi I need a script with an if statement that goes. I need it to search through all files within a directory with the extension .test if it finds the string '71502FSC1206' then do sed 's/71502FSC1206/\n&/g' > send.test If it finds the string '715MCH' or '715JAC' then I need it to move the...

7. UNIX for Dummies Questions & Answers

Bash - OR within an IF statement

Hey guys, Currently trying to write a wee script that runs only when logged in as one of two users. The rest of the script is working fine, but no matter what user I try to run it as, it always fails! This is the puzzling part:if ]; then echo "Run script as admin " exit 1 else...

8. Shell Programming and Scripting

BASH - case statement

Hi Gurus, I have the below BASH code which does not works for upper case alphabets except Z (upper case Z). What may be the reason. Also escape sequences like \n, \t, \b, \033(1m \033(0m (For bold letter) are not working. case $var in ) echo "Lower case alphabet" ;; ...

9. Shell Programming and Scripting

[Solved] If statement in bash

I have the following code in bash, however "set red frmt" is not displayed. echo "iarg_rd = $iarg_rd" iarg_rd="2" if ; then echo "Hello World" fi if ; then frmt="${gap}${!frmt_titl_yl}" elif ; then frmt="${gap}${!frmt_titl_bk}" elif ; then echo...

10. UNIX for Dummies Questions & Answers

Bash statement equivalent

Hi all, i need a equivalent for the statement i run in bash, so it would also run in other shells. Specially i need it for ksh to run on AIX. Here the statements: exec > >(tee -a $log) exec 2> >(tee -a $log >&2) Thanks.

LEARN ABOUT DEBIAN

tau_mapping_profile_timer

TAU_MAPPING_PROFILE_(3) 					  TAU Mapping API					   TAU_MAPPING_PROFILE_(3)

NAME

       TAU_MAPPING_PROFILE_TIMER - Declares a mapping timer

SYNOPSIS

       C/C++:

       TAU_MAPPING_PROFILE_TIMER(Profiler timer, FunctionInfo *FuncIdVar);

DESCRIPTION

       TAU_MAPPING_PROFILE_TIMER enables timing of individual statements, instead of complete blocks. It will attribute the time to a higher-level
       statement. The second argument is the identifier of the statement that is obtained after TAU_MAPPING_OBJECT and TAU_MAPPING_LINK have
       executed. The timer argument in this macro is any variable that is used subsequently to start and stop the timer.

EXAMPLE

       C/C++ :

       template<class LHS,class Op,class RHS,class EvalTag>
       void
       ExpressionKernel<LHS,Op,RHS,EvalTag>::run() {
	 TAU_MAPPING_PROFILE_TIMER(timer, TauMapFI);
	 printf("ExpressionKernel::run() this = 4854
", this);
	 // Just evaluate the expression.

	 TAU_MAPPING_PROFILE_START(timer);
	 KernelEvaluator<EvalTag>().evaluate(lhs_m, op_m, rhs_m);
	 TAU_MAPPING_PROFILE_STOP();
	 // we could release the locks here instead of in the dtor.
       }

SEE ALSO

       TAU_MAPPING_LINK(3), TAU_MAPPING_OBJECT(3), TAU_MAPPING_PROFILE_START(3), TAU_MAPPING_PROFILE_STOP(3)

								    08/31/2005						   TAU_MAPPING_PROFILE_(3)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

K Shell evaluating value to a variable

Discussion started by: vijaykrc

2. UNIX for Dummies Questions & Answers

Conditional statement in bash

Discussion started by: doc.arne

3. Shell Programming and Scripting

Evaluating a variable

Discussion started by: mikejordan

4. Shell Programming and Scripting

evaluating a variable inside a variable

Discussion started by: rethink