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Full Discussion: Issue handling single quoted argument in shell script.
Top Forums Shell Programming and Scripting Issue handling single quoted argument in shell script. Post 303039342 by mohtashims on Tuesday 1st of October 2019 10:25:41 AM
Old 10-01-2019
Quote:
Originally Posted by MadeInGermany
In single quotes you must not \escape the \escape:
Code:
./loopissue.sh '/tmp/scripts\n/tmp/mrt\n/tmp/exe'

The shell removes the 'single quotes' and the "double quotes" before it invokes the loopissue.sh. The quotes are only the hint to pass it as one string - to $1 in the loopissue.sh.
Also the following works (and is even better portable, because the \n must be interpreted by the echo command):
Code:
./loopissue.sh '/tmp/scripts
/tmp/mrt
/tmp/exe'

Is there a reason to squeeze all arguments into one $1?
Maybe you can simply use
Code:
./loopissue.sh /tmp/scripts /tmp/mrt /tmp/exe

This maps to $1 $2 $3 in the loopissue.sh
And it's simple to print them in different formats:
Code:
#!/bin/ksh
for dirpath
do
  echo "DIRR_PATH:$dirpath"
done
echo "Desired Output:$@"

Note that for dirpath is short for for dirpath in "$@". In other words, a for loop defaults to loop thru all arguments.
The arguments passed to the script come from the database in the format I shared and cannot be changed hence the proposed solution would not work.

Is there a way to replace all \\n to single whitespace as requested in the original post?
 

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LEARN ABOUT OPENSOLARIS

rmvb

rmvb(9F)						   Kernel Functions for Drivers 						  rmvb(9F)

NAME

       rmvb - remove a message block from a message

SYNOPSIS

       #include <sys/stream.h>

       mblk_t *rmvb(mblk_t *mp, mblk_t *bp);

INTERFACE LEVEL

       Architecture independent level 1 (DDI/DKI).

PARAMETERS

       mp    Message from which a block is to be removed. mblk_t is an instance of the msgb(9S) structure.

       bp    Message block to be removed.

DESCRIPTION

       The  rmvb()  function  removes a message block (bp) from a message (mp), and returns a pointer to the altered message. The message block is
       not freed, merely removed from the message. It is the module or driver's responsibility to free the message block.

RETURN VALUES

       If successful, a pointer to the message (minus the removed block) is returned. The pointer is NULL if bp was the only block of the  message
       before  rmvb() was called. If the designated message block (bp) does not exist, -1 is returned.

CONTEXT

       The rmvb() function can be called from user, interrupt, or kernel context.

EXAMPLES

       This  routine  removes  all  zero-length M_DATA message blocks from the given message. For each message block in the message, save the next
       message block (line 10). If the current message block is of type M_DATA and has no data in its buffer (line 11), then remove  it  from  the
       message (line 12) and free it (line 13). In either case, continue with the next message block in the message (line 16).

	 1  void
	  2  xxclean(mp)
	  3	 mblk_t *mp;
	  4  {
	  5	     mblk_t *tmp;
	  6	     mblk_t *nmp;
	  7
	  8	     tmp = mp;
	  9	     while (tmp) {
	 10		      nmp = tmp->b_cont;
	 11		      if ((tmp->b_datap->db_type == M_DATA) &&
				    (tmp->b_rptr == tmp->b_wptr)) {
	 12			   (void) rmvb(mp, tmp);
	 13			   freeb(tmp);
	 14		      }
	 15		      tmp = nmp;
	 16	     }
	 17  }

SEE ALSO

       freeb(9F), msgb(9S)

       Writing Device Drivers

       STREAMS Programming Guide

SunOS 5.11							    16 Jan 2006 							  rmvb(9F)
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