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Full Discussion: awk if condition help
Top Forums Shell Programming and Scripting awk if condition help Post 302614549 by davidtd on Wednesday 28th of March 2012 03:06:13 PM
Old 03-28-2012
awk if condition help

Hi, I need little help with awk's if condition statement. I have following code:
Code:
$ ssh myRemotehost 'ps ww -fu tomcat ' | awk ' { if ($1 == "tomcat") print "tomcat (pid " $2 ") is running... "; else print "tomcat stopped or dead" }'

Prints: 

tomcat stopped or dead
tomcat (pid 12345) is running...

if I do the below command, it prints correctly :

Code:
$ ssh myRemotehost 'ps ww -fu tomcat ' | awk ' /tomcat/ { if ($1 == "tomcat") print "tomcat (pid " $2 ") is running... "; else print "tomcat stopped or dead" }'

Prints: 
tomcat (pid 12345) is running...

But the problem is when the tomcat is not detected by the ps command, i do not see any output where in I would like to see that "tomcat stopped or dead"

Can someone please help me refine this.

Thanks in advance.
 

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RATFOR(1)						      General Commands Manual							 RATFOR(1)

NAME
ratfor - rational Fortran dialect SYNOPSIS
ratfor [ option ... ] [ filename ... ] DESCRIPTION
Ratfor converts a rational dialect of Fortran into ordinary irrational Fortran. Ratfor provides control flow constructs essentially iden- tical to those in C: statement grouping: { statement; statement; statement } decision-making: if (condition) statement [ else statement ] switch (integer value) { case integer: statement ... [ default: ] statement } loops: while (condition) statement for (expression; condition; expression) statement do limits statement repeat statement [ until (condition) ] break next and some syntactic sugar to make programs easier to read and write: free form input: multiple statements/line; automatic continuation comments: # this is a comment translation of relationals: >, >=, etc., become .GT., .GE., etc. return (expression) returns expression to caller from function define: define name replacement include: include filename Ratfor is best used with f77(1). SEE ALSO
f77(1) B. W. Kernighan and P. J. Plauger, Software Tools, Addison-Wesley, 1976. 7th Edition April 29, 1985 RATFOR(1)
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