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Top Forums Shell Programming and Scripting Issue handling single quoted argument in shell script. Post 303039334 by mohtashims on Tuesday 1st of October 2019 06:00:25 AM
Old 10-01-2019
Issue handling single quoted argument in shell script.

Below is my script that works fine and prints the desired output:

Code:
#!/bin/ksh
echo "$1" |
  while IFS= read -r dirpath
do
  echo "DIRR_PATH:$dirpath"
  install_dir=$install_dir" "$dirpath
done
echo "Desired Output:$install_dir"

Output:
Code:
./loopissue.sh "/tmp/scripts\\n/tmp/mrt\\n/tmp/exe"
DIRR_PATH:/tmp/scripts
DIRR_PATH:/tmp/mrt
DIRR_PATH:/tmp/exe
Desired Output:/tmp/scripts /tmp/mrt /tmp/exe

The problem is i'm not getting a clean way to seperate the arguments with a single white space as seen in the "desired output:" above when the parameters are passed in single qoutes like below:

Code:
./loopissue.sh '/tmp/scripts\\n/tmp/mrt\\n/tmp/exe'

I'm on Aix6.1 and ksh shell.

Can you please suggest how can I get similar output when the argument is passed in single quotes ?

I tried removing the single quotes using the below two approaches but that did not help.
Code:
sed "s/'//g"
tr -d"'"

In Summary: All \\n should be replaced by single white space and single quotes should be removed from the argument and stored in a variable.

Last edited by mohtashims; 10-01-2019 at 08:51 AM..
 

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SHCOMP(1)						       Korn shell utilities							 SHCOMP(1)

NAME
shcomp - compile a shell script SYNOPSIS
shcomp [ options ] [infile [outfile]] DESCRIPTION
Unless -D is specified, shcomp takes a shell script, infile, and creates a binary format file, outfile, that ksh can read and execute with the same effect as the original script. Since aliases are processed as the script is read, alias definitions whose value requires variable expansion will not work correctly. If -D is specified, all double quoted strings that are preceded by $ are output. These are the messages that need to be translated to locale specific versions for internationalization. If outfile is omitted, then the results will be written to standard output. If infile is also omitted, the shell script will be read from standard input. OPTIONS
[D dictionary] Generate a list of strings that need to be placed in a message catalog for internationalization. [n noexec] Displays warn- ing messages for obsolete or non-conforming constructs. [v verbose] Displays input from infile onto standard error as it reads it. EXIT STATUS
0 Successful completion. >0 An error occurred. SEE ALSO
ksh(1) IMPLEMENTATION
version shcomp (AT&T Research) 2003-03-02 author David Korn <dgk@research.att.com> copyright Copyright (c) 1982-2010 AT&T Intellectual Property license http://www.opensource.org/licenses/cpl1.0.txt 2003-03-02 SHCOMP(1)
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