Question

I have the following example file

    /etc/sysconfig/network/script.sh = -exe $Builder
    run_installation 123 44 556 4 = run_installation arg1 arg2 arg3 948
    EXE=somthing
    EXE somthing

I have three questions (I write bash script)

1. how to verify by sed or awk if the string “-exe” exist after “=” character

2. how to verify by sed or awk if the string run_installation exist in the first of the line (the first word in the line) and after the “=” character as example below (file)

3. the string EXE in file can be “EXE” or as “EXE=” , how to delete by sed the EXE or EXE=

   I do:

   sed s'/EXE//g' | sed s'/EXE=//g'
   

   but its not nice way to do in my bash script

• I need three different answers!

Lidia

Answer 1

you did not give further criteria on what to do if conditions 1 and 2 are not found…

awk '/=.*-exe/{f=1;}
/^run_installation.*=.*run_installation/{g=1}
/^EXE/{ gsub(/EXE=|EXE/,"") }
f && g{ print "ok" ;exit }
' file

The above code checks for condition 1 and condition 2 and print “ok” when both are found. The substitution of EXE for condition 3 is added for illustration purpose. State more clearly what you want to do and show your expected output next time

To verify them separately,

awk '/= -exe/{print "found"}' file
awk '/^run_installation.*=.*run_installation/{print "found"}' file