Programming :: Make A New Variable With The String From The Old Variable Btut Without Any Plus Sign?
Apr 7, 2010
my script has a variable which comes in the form +00.00 +0.00 -00.00 or -0.00 (the numbers can be any in that form) for any that have a + symbol I need to remove the +, but if it has a - symbol it needs to stay.
i need to make a new variable with the string from the old variable btut without any plus sign. I have tried a lot of different ways with no success, each thing I tried either left the + or removed the entire string. I think this should work but doesn't
I am bad with bash programming and I need some help how I can make variable names out of a string.I will need some help start doing that. And I think the first would be to get part of the filenames strings into variables.
I have a program that loops over each word in a sentence. I need to append a constant to the beginning and end of each word. It works up until the last word on the line.
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pic1.jpg pic2.jpg pic3.jpg
[code]....
I just want it to be the actual text "/mnt/accounts/user/temp/*.jpg" which i will be combining with other text to create a longer path elsewhere in the code.
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I think read A1 A2 makes A1, A2 string variables. Then, when A2 gets the value 01, '01' should be a string. But for some reason bash takes it as numeric. I know there are no types in bash.
I'm trying to read content of file to variable and use this variable in for loop. The problem is, when I have c++ comment style in file - /*. Spaces in line are also interpreted as separated lines.
For example:
Code:
Changing $files to "$files" eliminate these problems but causes that whole content of variable is treated as one string (one execution of loop).
I'm facing problems in developing the script as there are errors that sometimes i dun have any idea on how to solve it.What i'm doing now is not homework, but i had been assigned to develop some system in linux.
My problem currently is on sub-string matter, where i need to read the line from file/directory and based on the line retrieved,i need to seperate the information in the line and assign as variable..
Below are my script:
Thus, the output something like this: file_name successfully ran on Mon Jul 12 23:15:00 SST 2009.
Now, what i need to do is to extract certain information from that line which is the name, date, time and the status
The desired output is:
So,my next step is to identify the sub-string and assigned as variable first in order to parse the info and output it.
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run_repeatedly "programX -o "./messy/path/output-$NUM.txt"" The echo inside the loop prints "...-$NUM.txt"; obviously I'm aiming to have bash substitute the iteration number so that I end up with many output files not 1.
i have a bunch of ubnt nanostations M series (wireless access points/routers)... they use airOS (a fork of openwrt). it runs a custom firmware that i made using provided sdk. and the lighttpd uses php/fi 2.0.1.... this is (of course) used to serve the web configuration.the problem: i need to use the ($) in a string but i couldn't. what i need to do is download some file from the internet using wget and have the pid of wget back to keep track of the process, then parse the output to the page.
