Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Bad substitution - ShellCheck says okay
Top Forums Shell Programming and Scripting Bad substitution - ShellCheck says okay Post 303029904 by Don Cragun on Saturday 2nd of February 2019 08:22:06 PM
Old 02-02-2019
You haven't told us what shell and operating system you're using...

The command:
Code:
sed -e 's/:/=/g; s/\;/\n/g'

doesn't need the <backslash> before the <semicolon>. And, <backslash> before <n> is not portable. On some versions of sed that character pair will be translated to a <newline> character. On a sed that conforms to the standards, it produces unspecified results (frequently just the letter <n> on some systems). But since there aren't any <semicolon>s in the input being passed to sed I guess it doesn't really matter anyway???

Your script has no definition for LS_COLORS??? What are you hoping to have assigned to i on the various iterations through your loop?

And, of course, depending on what shell and OS you're using, the meaning of echo -e can vary widely.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Bad Substitution

Need Help... I am getting a bad substitution error on my script on a Solaris Server. However the script has been proven to work on HPUX and Solaris servers... #!/usr/bin/sh # # Set the location of the tzupdater.jar file # JAR=/tmp/tzupdater.jar # <<<<< UPDATE THIS LINE... (3 Replies)
Discussion started by: D_Redd74
3 Replies

2. Shell Programming and Scripting

Array reference - bad substitution

I've created a series of arrays named as follows: row1 row2 row3 . . . row10 Each has 4 elements. I'm trying to echo the array elements out in a for loop. Here's what I have: for ((i=1;i<=10;i++)) do for ((j=1;j<=4;j++)) do eval out=${row`echo $i`} echo -n $out (3 Replies)
Discussion started by: swankgd
3 Replies

3. Shell Programming and Scripting

bad substitution error in ksh

hi, i created a shell script having the following content: #! /usr/bin/ksh FROM="myemail@domain.com" MAILTO="someemail@domain" SUBJECT="TEST" BODY="/export/home/adshocker/body.txt" ATTACH="/export/home/adshocker/attach.prog" echo $ATTACH ATTACH_NAME="${ATTACH##*/}" echo $ATTACH_NAME... (5 Replies)
Discussion started by: adshocker
5 Replies

4. Shell Programming and Scripting

bad substitution error in ksh

Hello, In bash I can use the following: TMP=12345 MID=${TMP:1:1} the expected result is: 2 but when using KSH I'm getting a ''bad substitution" error. What is the correct syntaxin ksh? Thanks (2 Replies)
Discussion started by: LiorAmitai
2 Replies

5. UNIX for Dummies Questions & Answers

bad substitution

#!/bin/bash a1=( win 12,01,02,03,04 ) a2=( pre 04,05,06 ) a3=( msn 06,07,08,09 ) Given the above arrays, I want the script to return/echo the following in a loop; win 12,01,02,03,04 pre 04,05,06,07 msn 06,07,08,09 But I can't get it to do as such. I've tried; (2 Replies)
Discussion started by: Muhammad Rahiz
2 Replies

6. Shell Programming and Scripting

bad substitution error!

Hi All, I'm building a new shell script but i'm facing a problem with one line which is giving "bad substitution" error. Please assist script lines: #!/bin/sh printf "%s: " "Occurrence DATE (YYYYMMDD)"; read DATE shortdate=${DATE#??} o/p: ./test1: bad substitution This command is... (2 Replies)
Discussion started by: Dendany83
2 Replies

7. Programming

Make: Bad Substitution

Hi, I have a make file which I try to execute, but it failed when it arrived to the line: for r in ${PIPESTATUS }; do if (($r != 0)); then exit $r; fi;done; With the Error: ""make:/bin/sh: Bad substitution"" Or the Error: "make:${PIPESTATUS[...}: Bad substitution" (Depend on the operating... (3 Replies)
Discussion started by: nadne
3 Replies

8. Shell Programming and Scripting

Why I get bad bad substitution when using eval?

Why I get bad replace when using eval? $ map0=( "0" "0000" "0") $ i=0 $ eval echo \${map$i} 0000 $ a=`eval echo \${map$i}` !!!error happens!!! bash: ${map$i}: bad substitution How to resolve it ? Thanks! (5 Replies)
Discussion started by: 915086731
5 Replies

9. Shell Programming and Scripting

Bad substitution

Cant undestand :) why i have an error on line 2.it is working on my other boxes #!/bin/bash ret=$(echo Q | timeout 5 openssl s_client connect "${1`hostname`}:${2-443}" -ssl3 2> /dev/null) if echo "${ret}" | grep -q 'Protocol.*SSLv3'; then if echo "${ret}" | grep -q 'Cipher.*0000'; then ... (7 Replies)
Discussion started by: kenshinhimura
7 Replies

10. UNIX for Beginners Questions & Answers

Bad substitution issues.. but why?

i am trying to prepare a train and test dataset, for which i need to randomly split the data into corresponding folders (train,test).. I began on a simple script, but seem to get som weird error messages, that i cannot make sense of?.. what am I doing wrong? #!/bin/bash RED='\033] then... (13 Replies)
Discussion started by: kidi
13 Replies

LEARN ABOUT DEBIAN

shtool-subst

SHTOOL-SUBST.TMP(1)					      GNU Portable Shell Tool					       SHTOOL-SUBST.TMP(1)

NAME

       shtool-subst - GNU shtool sed(1) substitution operations

SYNOPSIS

       shtool subst [-v|--verbose] [-t|--trace] [-n|--nop] [-w|--warning] [-q|--quiet] [-s|--stealth] [-i|--interactive] [-b|--backup ext]
       [-e|--exec cmd] [-f|--file cmd-file] [file] [file ...]

DESCRIPTION

       This command applies one or more sed(1) substitution operations to stdin or any number of files.

OPTIONS

       The following command line options are available.

       -v, --verbose
	   Display some processing information.

       -t, --trace
	   Enable the output of the essential shell commands which are executed.

       -n, --nop
	   No operation mode. Actual execution of the essential shell commands which would be executed is suppressed.

       -w, --warning
	   Show warning on substitution operation resulting in no content change on every file. The default is to show a warning on substitution
	   operations resulted in no content change on all files.

       -q, --quiet
	   Suppress warning on substitution operation resulting in no content change.

       -s, --stealth
	   Stealth operation. Preserve timestamp on file.

       -i, --interactive
	   Enter interactive mode where the user has to approve each operation.

       -b, --backup ext
	   Preserve backup of original file using file name extension ext.  Default is to overwrite the original file.

       -e, --exec cmd
	   Specify sed(1) command directly.

       -f, --file cmd-file
	   Read sed(1) command from file.

EXAMPLE

	#   shell script
	shtool subst -i -e 's;(c) ([0-9]*)-2000;(c) 1-2001;' *.[ch]

	#    RPM spec-file
	%install
	    shtool subst -v -n 
		-e 's;^(prefix=).*;1 $RPM_BUILD_ROOT%{_prefix};g' 
		-e 's;^(sysconfdir=).*;1 $RPM_BUILD_ROOT%{_prefix}/etc;g' 
		`find . -name Makefile -print`
	    make install

HISTORY

       The GNU shtool subst command was originally written by Ralf S.  Engelschall <rse@engelschall.com> in 2001 for GNU shtool.  It was prompted
       by the need to have a uniform and convenient patching frontend to sed(1) operations in the OpenPKG package specifications.

SEE ALSO

       shtool(1), sed(1).

18-Jul-2008							   shtool 2.0.8 					       SHTOOL-SUBST.TMP(1)
All times are GMT -4. The time now is 01:28 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy