Register a domain and help support LQ
Go Back > Forums > Non-*NIX Forums > Programming
User Name
Programming This forum is for all programming questions.
The question does not have to be directly related to Linux and any language is fair game.


  Search this Thread
Old 06-01-2005, 08:15 AM   #1
LQ Newbie
Registered: Jun 2005
Location: Manchester, UK
Distribution: Mandrake 10.1
Posts: 4

Rep: Reputation: 0
Bash Script; command not found

Im having a problem assigning a resultant string of 3 piped commands to a variable.
The script is written in bash running on Mandrake 10.1.

The offending line is;
ALTCOURSE= `head -$LINE ./data | tail -1 | cut -d: -f1`

which is giving the error
./ line 11: sm1024: command not found

as this works; echo `head -$LINE ./data | tail -1 | cut -d: -f1`
im guessing its the assignment to ALTCOURSE which is the problem.

The full script is;
sed 's/-//g' ./webct.csv > ./webct2.csv

((TOTAL = `wc -l ./data | cut -f1 -d' '`))

echo $TOTAL
for ((LINE=1; LINE<=TOTAL; LINE++))
echo $LINE
#echo $(head -$LINE ./data | tail -1 | cut -d: -f1)
ALTCOURSE= `head -$LINE ./data | tail -1 | cut -d: -f1`
COURSE= `head -$LINE ./data | tail -1 | cut -d: -f2`
sed -e "s/'$ALTCOURSE'/'$COURSE'/g" ./webct2.csv > ./webct3.csv

I guess there may be an alternative method as the head tail method seems a bit clumsy at best.

Thanks for your help
Old 06-01-2005, 08:27 AM   #2
Registered: Nov 2003
Location: Bristol, UK
Distribution: Debian Lenny, Gentoo (at work)
Posts: 388

Rep: Reputation: 32
The problem is the space between the = and the command. Change the line to ALTCOURSE=`head ....

What's happened is that bash interprets the space as a delimiter, and is setting ALTCOURSE to nothing, running the command specified in the backticks and then attempting to run the resulting value as a program. By removing the space, the value will be stored in ALTCOURSE as expected.

You'll also need to change the other lines where you've got spaces around the = sign.

As a quick side point, please use the code tags when you post code. It preserves the indentation and generally makes the post easier to read.
Old 06-01-2005, 09:59 AM   #3
LQ Newbie
Registered: Jun 2005
Location: Manchester, UK
Distribution: Mandrake 10.1
Posts: 4

Original Poster
Rep: Reputation: 0
Thanks for help.
The other '=' works because of the (()) notation which I tried with ALTCOURSE but with no luck.
Ill use the code button in future as well thanks for the tip


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
bash: command not found hamish Linux - Newbie 7 02-23-2011 04:28 PM
bash: g++: command not found m_lp_ql_m Linux - Software 8 07-08-2010 01:45 PM
bash -command not found- ALInux Linux - Newbie 3 12-30-2006 12:41 PM
bash: pg: command not found Chomper Programming 2 02-05-2005 02:22 AM
-bash: ls: command not found jchun Linux - General 3 11-02-2004 10:11 AM

All times are GMT -5. The time now is 02:03 PM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration