Shell Programming and Scripting

Hi,
Solutions may be in ksh or bash
1. i have some files like.

Code:

CAT_CO00102_20100816190955.Z   CAT_CO00102_20100816190955Q.Z  CAT_CO00202_20100825135947A.Z

to find out files ends with A.Z or Q.Z i use following in ksh.

Code:

 
CAT="CAT*[A|Q].Z"
ls $CAT
CAT_CO00102_20100816190955Q.Z  CAT_CO00202_20100825135947A.Z

i want to find out files which don't have A.Z or Q.Z in the end using ls command?

2. i define a function outside the nawk command which trims the leading and trailing spaces like

Code:

  function TrimSpace(x)
  {
    y=gsub(/^[ \t]+|[ \t]+$/,"",x)
    {
      return x
    }
  }

and i want to call this function in nawk commad like.

Code:

nawk '{print TrimSpace($1)}' file

Note: this function works fine if i define it within nawk.You may use your any dumy function for testing.
If it is possible to any outside function in nawk? and if yes,how to accomplish it

3. Sometimes while unziping some files i got an error and the further unziping stopped.might be other files are able to be unzip.i.e

Code:

 
gunzip a.Z b.Z c.Z 
gunzip: a.Z: unexpected end of file

it found an error on a.Z and stopped but b.Z and C.Z might be correct.
why this error comes and is there any possible way to skip the file with error and let the others start to unzip.

Advance thanks

Question 1:

Code:

ls |grep -v "[A|Q].Z$"

thanks for quick response but i also want to use pattern also in search like
ls|grep -v "^CAT*[A|Q].Z$"

Code:

ls|grep -v "^CAT.*[A|Q].Z$"

thanks but it also grep other files too like

Code:

CAT_CO00102_20100816190955.Z
abc.txt

---------- Post updated at 02:30 AM ---------- Previous update was at 01:51 AM ----------

plz urgent help needed

I test the command again, and don't find any issue.

-v option will exclude any files start with CAT, and end with A.Z or Q.Z.

Code:

$ cat infile
CAT_CO00102_20100816190955.Z
CAT_CO00102_20100816190955A.Z
CAT_CO00102_20100816190955Q.Z
abc.txt

$ grep -v "^CAT.*[A|Q].Z$" infile
CAT_CO00102_20100816190955.Z
abc.txt