How to Use Awk in a Bash Script [having problems]?

Question

So I've been working on an assignment pertaining to awk. Everything is pretty much done, except when I throw commands into a bash script (run eleven of them all automagically) I don't get any output. Am I missing some sort of syntax that awk needs to work in a script? Thanks!

I'll just give you the first four to give you an idea:

#!/bin/sh
##VARIABLES
W=/usr/share/dict/words
C=cars_file
P=/etc/passwd


##PROBLEM EXAMPLE
#display problem number
#display command
#run command
#echo whitespace


##PROBLEMS
 echo ">PROBLEM 01"
 echo    "awk '/zzan/ {print}' $W | head"          #contains 'zzan'
          awk '/zzan/ {print}' $W | head           #pipe to head
 echo

 echo ">PROBLEM 02"
 echo    "awk '/^[aeiou].*[ou]rch$/ {print}' $W | head"       #start w/lowercase vowel
 echo     awk '/^[aeiou].*[ou]rch$/ {print}' $W | head        #end in orch/urch
 echo                                                         #pipe to head

 echo ">PROBLEM 03"
 echo    "awk '/chevy/ {print}' $C"                 #display all records
 echo     awk '/chevy/ {print}' $C                  #of all chevys
 echo

 echo ">PROBLEM 04"
 echo    "awk '$1 ~ /o/ {print}' $C"               #display all records
 echo     awk '$1 ~ /o/ {print}' $C                #contains 'o' in column 1
 echo

`

Etan Reisner · Accepted Answer · 2013-11-19 19:03:09Z

2

The first awk entry should work fine (assuming your awk script does what you want. The other three have an erroneous leading echo and as such are just echoing the command instead of running it.

answered Nov 19, 2013 at 19:03

Etan Reisner

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2 Comments

9TrSl9IAlaLfDmffagsw Over a year ago

Oh god. I should've seen that. The first one does, indeed, run fine. Thanks for catching my mistake!

Kent Over a year ago

@user3010203 don't forget accepting the answer, if it solved your problem.

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