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Read a file line by line

 
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# 1  
Old 05-12-2005
Question Read a file line by line
I am relatively new to UNIX.
I am having a flat file with around 20,000 lines in it.
Basically, it is a dump of a database table with tab character as a delimeter.
I want to read the file row by row and process every row.

Any suggestions about achieving it efficiently??
Thanks
Smilie
VEN
# 2  
Old 05-12-2005
This gives you scads of ways to parse your file.
# 3  
Old 05-12-2005
What do you mean by process the file?

Unix has some great text handling abilities. All of them work on a line by line basis.
# 4  
Old 10-30-2008
Result is not getting stored in the variable
alert_val=$( db2 "select value (( select distinct 1 from opus.alerts where alname = 'MQ_FAILURE_INTERFACE' and
aldatetime > current timestamp - 20 minutes),0) from sysibm.sysdummy1 with ur" | sed -n '/--/ {n; p;}')

Can you tell me why alert_val not able to hold the value

This is my question not the post reply

Please do not hijack other people's threads
Last edited by jim mcnamara; 10-30-2008 at 12:05 PM..
# 5  
Old 10-30-2008
Read line by line:
Code:
while read file_rec
do
#   file_rec is the current line of text in the file
     echo "$file_rec"
done < inputfilename  > newfilename

 
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