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Full Discussion: Help using wildcard (*) within script
Top Forums Shell Programming and Scripting Help using wildcard (*) within script Post 303002745 by katolb75 on Thursday 31st of August 2017 02:55:07 PM
Old 08-31-2017
Help using wildcard (*) within script
Hi. I'm using !/bin/ksh. I used to be decent at shell programming years ago, but now I am extremely rusty. HELP

My team has a script that takes user input from screen. The user enters grep A0 /dir/dir1/dir2/*filename*. The code works if they enter a filename or directory. It doesn't work if user enters *filename* (or filename*). User gets 'no matches found'.
Code:
 
 func_grep()
{
getstr "Search command: " cmdstr
search_cmd=`echo $cmdstr | awk '{ print $1 }'`
 expandstr "$cmdstr" /* expandstr assigns v1_file. This part is working
cmd_opt=`echo $cmdstr | awk 'NF > 3 { print $2 }'`
search_key=`echo $cmdstr | awk '{ print $(NF-1)}'`
chk_str $v1_file /*checks for '../'
if [ $? -eq "0" ]
then
      if [ -d $v1_file ]  # if input is directory then append "*" to
      then                # search for entire directory
             v1_file="$v1_file/*"
      fi
      $search_cmd $cmd_opt $search_key $v1_file > /ercs/ercs000/reports/grep_$LOGNAME
  
 case $? in
             0) echo "\nThe grep output file: /ercs/ercs000/reports/grep_$LOG
             NAME has been created." ;;
             1) echo "\n\tNo matches were found." ;;
             *) echo "\n\tSyntax  errors  or  inaccessible  files."
                echo "\t$search_cmd $search_key $v1_file"
                return 1 ;
 esac
}

---------- Post updated at 02:55 PM ---------- Previous update was at 11:41 AM ----------

Ok no replies. In the meantime, I've done some trouble shooting at the command line and figured out that the assignment below in the expandstr function is not working when greping the 'path/*file*' because the $NF contains only the last file name in *file* (instead of all the names) which is because they are delimited by a space.

Code:
v1_file=`echo $1 | awk '{ print $NF }`

So I need to capture in a variable everything after
Code:
$search_key (/path/file1 /path/file2 /path/file3 etc)

. Any suggestions on how to accomplish that. Hope this is clear.
Last edited by Scrutinizer; 09-01-2017 at 01:25 AM.. Reason: code tags...; and again
 

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LEARN ABOUT XFREE86

times

times(1)                                                           User Commands                                                          times(1)

NAME

       times - shell built-in function to report time usages of the current shell

SYNOPSIS

   sh
       times

   ksh
       times

DESCRIPTION

   sh
       Print the accumulated user and system times for processes run from the shell.

   ksh
       Print the accumulated user and system times for the shell and for processes run from the shell.

       On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:

       1.  Variable assignment lists preceding the command remain in effect when the command completes.

       2.  I/O redirections are processed after variable assignments.

       3.  Errors cause a script that contains them to abort.

       4.  Words,  following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
           able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation  are  not
           performed.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       ksh(1), sh(1), time(1), attributes(5)

SunOS 5.10                                                          15 Apr 1994                                                           times(1)
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