UNIX for Dummies Questions & Answers

Hi,
I have the following statement which parses a string for me and prints it out:
l_comp="dc000.runksh.test.ksh|
$g_sql/dc0000.runksh_test.sql|new.dat|control.ctl"

echo $l_comp | awk -F"|" '{ for ( i = 1; i <= NF; i++) { print $i; } } '

Rather then printing the data, I would like to pass the value to a local function like this, but it is not working.

echo $l_comp | awk -F"|" '{ for ( i = 1; i <= NF; i++) { lf_verify_component $i; } } '

Can someone point to what I am doing wrong and how I can correct?

You can't call shell functions from awk, or vice versa.

Perhaps you mean

Code:

for i in $l_comp; do
  If_verify_component "$i"
done

It's not entirely clear what the problem is, so if this doesn't help, perhaps you can describe what If_verify_component is.

l_comp is a string of pipe delimited file names, I want to parse the string and then verify that the file exist where I expect it to exist.

lf_verify_component () {
l_comp_file=$i
l_comp_suffix=`echo "$l_comp_file" | awk -F'.' {'print $2'}`
l_valid_comp="N"

# Does the file exist?
if [[ ! -f $l_comp_file ]] && [[ ! -f $path/$l_comp_file ]];then
if [[ `echo $l_comp_suffix` = "ksh" ]] || [[ `echo $l_comp_suffix` = "KSH" ]] || [[ `echo $l_comp_suffix` = "" ]];
then
if [[ -f $g_bin/$l_comp_file ]];then
l_valid_comp="Y"
fi
elif [[ `echo $l_comp_suffix` = "ctl" ]] || [[ `echo $l_comp_suffix` = "CTL" ]] || [[ `echo $l_comp_suffix` = "sql
" ]] || [[ `echo $l_comp_suffix` = "SQL" ]] || [[ `echo $l_comp_suffix` = "dat" ]] || [[ `echo $l_comp_suffix` = "DAT
" ]];then
if [[ -f $g_sql/$l_comp_file ]];then
l_valid_comp="Y"
fi
fi
else
l_valid_comp="Y"
fi

if [[ $l_valid_comp = "N" ]];then
echo 'ERROR VALIDATING SOURCE FOR THE COMPONENT FILE: ' $l_comp_file >> $l_spool_file
exit 1
fi

That's a massive amount of echo in backticks. Is there a reason the input is pipe delimited? It would be less obscure to handle if it were whitespace-delimited.

Code:

OLDIFS=$IFS
IFS='|'
for i in $l_comp; do
  If_verify_component "$i"
done
IFS=$OLDIFS

If_verify_component () {
  l_comp_file=$i
  l_comp_suffix=${i#*.}
  l_valid_comp="N"

  # Does the file exist?
  if [[ ! -f $l_comp_file ]] && [[ ! -f $path/$l_comp_file ]];then
    case $l_comp_suffix in [Kk][Ss][Hh]|"")
        if [[ -f $g_bin/$l_comp_file ]];then
          l_valid_comp="Y"
        fi;;
      CTL|ctl|SQL|sql|DAT|dat)
        if [[ -f $g_sql/$l_comp_file ]];then
          l_valid_comp="Y"
        fi;;
    esac
  else
    l_valid_comp="Y"
  fi

  if [[ $l_valid_comp = "N" ]];then
    echo 'ERROR VALIDATING SOURCE FOR THE COMPONENT FILE: ' $l_comp_file >> $l_spool_file
    exit 1
  fi
}

I'm not sure I got the nesting right. It would help if you used code tags when posting scripts.

Thank you very much, I appreciate your help.
The problem I am still having is that I am looking to find the final extension of a file name and the file name may have multiple nodes.

If the l_comp="dc000.runksh.test.ksh|/dbmgtu01/app/oracle/orbitz/1.0.0/sql/dc0000.runksh_test.sql|new.dat|control.ctl"

lf_verify_component () {

l_comp_file=$i
l_comp_suffix=${i#*.}

echo ' Component File: ' $l_comp_file
echo ' Component Suffix: ' $l_comp_suffix

} # end of lf_verify_component

The outpiut I get is:
Component File: dc000.runksh.test.ksh
Component Suffix: runksh
Component File: /dbmgtu01/app/oracle/orbitz/1.0.0/sql/dc0000.runksh_test.sql
Component Suffix: 0
Component File: new.dat
Component Suffix: dat
Component File: control.ctl
Component Suffix: ctl

How can I code it so that it only gives me the string after the final "."?

If your shell supports ${i##*.} then use that notation. Otherwise, reverting back to an awk script might be the most straightforward solution.

Code:

l_comp_suffix=`echo "$i" | awk -F. '{ print $NF }'`

By the way, the function should properly use $1 instead of the global variable $i, but that's rather academic at this point. If your real script is much larger than this, such things will start to matter.

Incidentally, your output doesn't really match what your code does. For example, the output for dc000.runksh.test.ksh should be runksh.test.ksh (however it does match what your original awk script would have produced).