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how to end if statment
Posted on 2013-01-08
i have a nested if statement that will keep inserting the string into the file I want the if statement to see that it is true then do nothing else if string is not there then insert. So when i runs the next time if its true do nothing here is my if statement:
if grep -q "PATH=$PATH:$HOME/bin' "root/.bashrc"
then
echo "The executable search path PATH does exist"
else
if ! grep -q "PATH=$PATH:$HOME/bin' "root/.bashrc"
then
echo "Root search path is missing will be inserted"
sed -i -e '3a\
\#User blah blah blah' "/root/.bashrc"
sed -i -e '4a\
PATH=blah blah blah' "/root/.bashrc"
fi
fi
if grep -q "PATH=$PATH:$HOME/bin' "root/.bashrc"
then
echo "The executable search path PATH does exist"
else
if ! grep -q "PATH=$PATH:$HOME/bin' "root/.bashrc"
then
echo "Root search path is missing will be inserted"
sed -i -e '3a\
\#User blah blah blah' "/root/.bashrc"
sed -i -e '4a\
PATH=blah blah blah' "/root/.bashrc"
fi
fi
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8 Comments
if [ condition1 ] ; then
echo "true1"
else
if [ condition2 ] ; then
echo "true2"
else
echo "false"
fi
fi
Should work. Perhaps you need the brackets? (if so remember the white spaces)
echo "true1"
else
if [ condition2 ] ; then
echo "true2"
else
echo "false"
fi
fi
Should work. Perhaps you need the brackets? (if so remember the white spaces)
Active 1 day ago
Your quotes are unmatched.
Did you mean "PATH=$PATH:$HOME/bin" or 'PATH=$PATH:$HOME/bin' ?
Either way, it's different from the PATH=blah blah blah that's inserted (assuming that .bashrc has 4 lines) so the condition would not change the next time it runs
Anyway, "root/.bashrc" and "/root/.bashrc" are different files, unless your working directory happens to be /
The if inside the else appears to be superfluous.
Did you mean "PATH=$PATH:$HOME/bin" or 'PATH=$PATH:$HOME/bin' ?
Either way, it's different from the PATH=blah blah blah that's inserted (assuming that .bashrc has 4 lines) so the condition would not change the next time it runs
Anyway, "root/.bashrc" and "/root/.bashrc" are different files, unless your working directory happens to be /
The if inside the else appears to be superfluous.
I guess now I just need some help with how to write this out I just want it to stop if the string PATH=$PATH:$HOME/bin is in the file /root/.bashrc. I don't know how to begin putting that together.
Active 1 day ago
Just make everything consistent and your code should work, with or without the superfluous inner if condition
Active 6 days ago
Try this:
Note that I use test.txt instead of your .bashrc (for testing purposes).
if grep -q "PATH=\$PATH:\$HOME\/bin" test.txt
then
echo "The executable search path PATH does exist"
else
if ! grep -q "PATH=\$PATH:\$HOME/bin" test.txt
then
echo "Root search path is missing will be inserted"
sed -i -e '1i#' test.txt
sed -i -e '2iPATH=\$PATH:\$HOME/bin' test.txt
fi
fi
Note that I use test.txt instead of your .bashrc (for testing purposes).
Thanks it sure helps when you can see from someone's perspective this helps me very much.
Always learning but its better then being dead. Thanks.
Always learning but its better then being dead. Thanks.
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