Grep string pattern from file skill

There's actually an example of doing this in the "Related Thread" list below this post:  Search for a string pattern inside a file . Your post has changed since you first posted it, as it was originally using pcreCompile (but not calling pcreExecute) .

Your code now is a bit strange - I assume the sumfile assignment really wouldn't be looking in a directory called "getWorkingDir" but anyway this works:

sumfile=simplifyFilename("./file.txt")
if(system(strcat("grep -q '" "Hello run completes" "' " sumfile))==0 then
  printf("Hello run completes\n")
else
  printf("error run uncompleted\n")
)

This uses -q on the grep to silently check, and correctly uses the return status of the command (0 means success) rather than t/nil (the exit status is always going to be "true" so that wouldn't work in your code).

Andrew

Thanks Andrew..

Appreciate you guidance!!

one more query i have...suppose i have run file(abc.sh)  which i run on shell terminal to launch any tool x.

Now, if i have to ran same file..i.e abc.sh from skill file...

is it right way to do it?

sh(./abc.sh)

You'd need to put quotes around the string, of course. You could use:

sh("./abc.sh")

or

system("./abc.sh")

or 

ipcBeginProcess("./abc.sh")

depending on how you want to interact with and get information from the child process. I suggest you read the documentation to determine which makes most sense.

Andrew

Hey everyone,

for the above post i have tried to store the output coming and then display through dialog box...but am getting value 0 in final log..how to correct that error?

sumfile=simplifyFilename("./file.txt")
final_log = (system(strcat("grep  '" "Hello rule abc completes" "' " sumfile  | head -1)) ;;;;  (head -1  to only store the first string match) 
  hiDisplayAppDBox( ?name 'errorbox2 ?dboxBanner "success" ?dboxText final_log ?buttonLayout 'Close ?buttons 'Cancel)

Please try reading the documentation for system. You'll see that it returns the exit status of the command executed, not the output. You'd need to use ipcBeginProcess if you want to read the output of the command executed.

So many of your questions could easily be solved if you read the documentation!

Andrew