Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Unable to assign command output to variable

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Unable to assign command output to variable
# 1  
Old 05-15-2012
Unable to assign command output to variable
Code

Code:
set -x
STATUS="0"
echo $STATUS
for i in `ls -ltr Report*|awk '{ print $9 }'`
do
if [ "`fuser "$i" 2>/dev/null`" -eq "" ]
then
flg = "`head -1 "$i" |cut -c 31-33`"
echo `head -1 "$i" |cut -c 31-33`
echo $flg
if [ $flg = "FUN" ]
then
echo "having Fun"
STATUS="2"
else
echo "no Fun"
fi
fi
done

Output

Code:
+ STATUS=0
+ echo 0
0
+ ls -ltr Report123.dat
+ awk { print $9 }
+ fuser Report123.dat
+ 2> /dev/null
+ [  -eq  ]
+ head -1 Report123.dat
+ cut -c 31-33
+ flg = FUN
./ararm_856_checkfile.sh[8]: flg:  not found
+ head -1 Report123.dat
+ cut -c 31-33
+ echo FUN
FUN
+ echo
+ [ = FUN ]
./ararm_856_checkfile.sh[11]: test: argument expected
+ echo no Fun
no Fun

Moderator's Comments:
Mod Comment Code tags for code, please.
# 2  
Old 05-15-2012
No whitespace when making assignments.

Code:
flg=something

is not the same as
Code:
flg = something

and there is no reason for `ls -ltr Report*|awk '{ print $9 }'`. in fact it'll break eventually. just use for i in Report*
# 3  
Old 05-22-2012
Thanks
Neutron and Sumtaru
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

How do I assign the output of a command to a variable within a loop in bash?

In the else of the main if condition . else set lnk = $(readlink -f <path> | cut -d '/' -f7) echo "$lnk" if ] When I run the above on command line , the execution seems to be fine and I get the desired output. But when I try to assign it to a variable within a loop... (12 Replies)
Discussion started by: sankasu
12 Replies

2. Shell Programming and Scripting

Assign output to dynamic variable

Hi Folks, I am trying to assign a value from the command to a dynamic variable. But I am not getting the desired output.. I am sure something is wrong so i need experts advise. There will be multiple files like /var/tmp/server_1, /var/tmp/server_2, /var/tmp/server_3, having different server... (6 Replies)
Discussion started by: ganga.dharan
6 Replies

3. Shell Programming and Scripting

In bash script, how to assign output of a command to a variable while keeping tabs?

Hi, wondering if it's been asked before but didn't find matches from google. Basically I have this line: myvar=$(echo -e "a\tb") Now somehow the '\t' from the echo output gets replaced with white space and then stored in $myvar. It creates a problem for me later to use tab as delimiter to do... (2 Replies)
Discussion started by: birddie
2 Replies

4. Shell Programming and Scripting

Assign dscl output to variable as an array

Greetings folks, I am trying to assign the output of a dscl command (contains name<spaces>id) to a variable as an array. Currently I am piping the output into a tmp file, then reading the tmp file into an array, then parsing the array. I would like to bypass creating the tmp file portion of... (6 Replies)
Discussion started by: macnetdaemon
6 Replies

5. Shell Programming and Scripting

assign awk output to bash variable

greetings all, I am have a heck of a time trying to accomplish a very simple thing. I have an array of "shortname<spaces>id" created from a dscl output. I want to assign shortname=word1 and id=word2. I have tried shortname=$(${textArray} | awk '{print $1}') - and get 'awk : cannot open... (3 Replies)
Discussion started by: macnetdaemon
3 Replies

6. Shell Programming and Scripting

Assign command (with pipe) output to a variable

Hi , I would like to assign command (with pipe) output to a variable. The code is as follows. The goal of the code is to get the last folder folder with a particular name pattern. myDate=`ls | grep 2009 | tail -1` echo "myDate=" $myDate However, in the presence of the pipe, the code... (3 Replies)
Discussion started by: jeff_cen
3 Replies

7. Shell Programming and Scripting

how to assign the output of the interective script to the variable

Hi, I work in ksh88. I have an interective script which prompts the user for the input and returns numeric value depending on the input provided. I need to call this script inside another script and then assign the resulting output the the variable. The call like that A=`my script` obviously... (6 Replies)
Discussion started by: aoussenko
6 Replies

8. Shell Programming and Scripting

Unable to assign value to variable using awk coz of whitespace in value

Unix gurus, I have a file as below, which is basically the result set obtained from a sql query on an Oracle database. ID PROG_NAME USER_PROG_NAME -------- --------------- ---------------------------------------- 33045 INCOIN Import Items 42690 ... (3 Replies)
Discussion started by: sunpraveen
3 Replies

9. Shell Programming and Scripting

hot to assign output to a variable

I want to assign a comment to a veriable for example my program head -1 myfile I want to assıgn output to a variable (1 Reply)
Discussion started by: walnut
1 Replies

10. UNIX for Dummies Questions & Answers

how to assign an output to a variable

Hi, I am giving a grep command, and i am getting the output. i want to store it in a variable for eg a = grep '12345' /dir/1/2/log.txt ( the output is number) b= grep 'basic' /dir/1/2/log1.txt (in this case the output is character) so how to assign the output of grep to a variable ... (1 Reply)
Discussion started by: vasikaran
1 Replies
Login or Register to Ask a Question