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what does each of these lines mean?
11-05-2010
#!/bin/bash counter=1 exec 3< /usr/local/test1.txt while read -u3 line do grep "$line" /usr/local/test1.txt2>/dev/null if [[ $? -eq 1 ]] then echo "Line $counter is not present in Naginas_Exp_0206_non_dupCME file!!!" fi (( counter += 1 )) done
11-05-2010
#!/bin/bash this is the shell used to execute the script counter=1 a variable initialized to value 1 exec 3< /usr/local/test1.txt open an input steam file descriptor sourced by the file /usr/local/test1.txt while read -u3 line loop by reading line by line what comes from the file descriptor 3 that has just been opened previously and put it in a variable called "line" do start of the loop grep "$line" /usr/local/test1.txt 2>/dev/null get the line of the file /usr/local/test1.txt that match the value of the variable $line the 2>/dev/null means that if nothing if found, the error message will be ignored (like sent to trash) instead of being displayed if [[ $? -eq 1 ]] if the retrun code of the last command equals 1 (if the command did not find any line matching the $line value) then keyword mandatory with "if" conditions echo "Line $counter is not present in Naginas_Exp_0206_non_dupCME file!!!" then display the message with the value of the counter variable fi end of the if condition (( counter += 1 )) increment the counter (counter=counter+1) done
11-08-2010
). Program only makes sense if the space was missing after 2 and before >grep "$line" /usr/local/test1.txt2 > /dev/null
#!/bin/bash
while read line
do
((counter++))
grep -q "$line" test1.txt2 || echo "Line $counter is not persent in Naginas_Exp_0206_non_dupCMD file!!!"
done < test1.txt|
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