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Linux / UNIX
echo with grep
Joined: Oct 03, 2008
Jun 22, 2009 09:09:28
I have something like below, the result of the grep is assigned to abcd variable
abcd=`grep -n "^AB.*123456.*" /tmp/file | cut -d: -f1`
when I try to echo this result to a file using echo $abcd>> /tmp/abc it is not working
It works when I run from the command prompt and this gets assigned to abcd but when I try to print the value using echo $abcd i dont get any results..
Joined: Oct 01, 2001
Jun 24, 2009 00:22:37
It seems to work for me. What shell are you using? Bash, Bourne shell, Korn shell? Does the file /tmp/abc exist already before you run the echo command? Is NOCLOBBER set?
Can you echo anything into the file? For example: echo text >> /tmp/abc Does that work?
I agree. Here's the link:
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