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How to keep unix from evaluating a file pattern

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http://www.unix.com – How do I keep a file pattern from evaluating? I want to pass in a file pattern to a script as a parameter, and then use that pattern in subsequent statements, but I can't get the pattern to not evaluate before I use it. For example, if I have 3 files called file1.txt, file2.txt and file3.txt and in my script I have something like this: num=`ll $1 | wc -l` and I pass file*.txt in as my parameter, num always = 1. Because $1 evaluates to "file1.dat file2.dat file3.dat", all one line. So essentially my statement says num=`ll file1.dat file2.dat file3.dat | wc -l` How do I g (HowTos)

jiqi2's picture
Submitted by jiqi2 on 09/25/2012

Stories similar to How to keep unix from evaluating a file pattern

Hi,

I am getting crazy after days on looking at it: Bash in Ubuntu 12.04.1

I want to do this: pattern="system /path1/file1 file1" new_pattern=" data /path2/file2 file2" file to edit: data.db

- I need to search in the file data.db for the nth occurrence of pattern - pattern must match a complete line - insert after pattern a new line with new_pattern

Sed in my installe

I want to insert the contents of file1 into file2 after a matching PATTERN. I want to do it only after the first occurrence of the PATTERN.

I would like to know the modification I need to make to the following command for my needs.

sed -i "/PATTERN/r file1" file2

Execution problem 35 weeks 7 hours ago

How to search a pattern from multiple files...

i used the command suppose the pattern name is xxx grep xxx (file1-o- file2-o- file3)

Thanks in advance

Execution problem 35 weeks 23 hours ago

How to search a pattern from multiple files...

i used the command suppose the pattern name is xxx grep xxx (file1-o- file2-o- file3)

Thanks in advance

Zipping files two by two 25 weeks 4 days ago

I have a directory that has 800 files like this:

file1.png file1@2x.png

file2.png file2@2x.png

file3.png file3@2x.png

... etc

I need to create zip files like this

file1.zip (containing file1.png and file1@2x.png) file2.zip (containing file2.png and file2@2x.png) file3.zip (containing file3.png and file3@2x.png)

Is there a magic command I can use to do that?

thanks.

I have a directory full of files ending with different extensions, how would I list/select only the files ending with .in and corresponding .out that share the same basename?

e.g.

file1.txt file1.in file2.in file3.in file2.out file3.out

What I want to select from these files are:

file2.in file2.out file3.in file3.out

Help regarding grep command 25 weeks 5 days ago

Hi ,

I have two files File1 and File2.In First file i have table names abc def cfg

In second file i have the sql commands for e.g replace view def.test1 for access select * from abc.test1;

I have to find the common words from File1 and File2 and printing it in File3 the grep command i am using is

grep -o -f File1 File2|sort|uniq > File3

The problem i am facing is , if i run the above g

For Suppose, i have installed a package having files file1, file2 and file3. After installation i have removed file3.

But "rpm -qf file3" is giving the package name, even file3 was not there. And also "rpm -ql package" is also displaying all 3 files.

How can i update rpm about that package to display only available files i.e. file1 and file2 when queried with "rpm -ql"

bash script 1 year 6 weeks ago

I have 4 files file1,file2,file3,file4.I have to read each word from file1 and return the count of it in all the 3 remaining files as a whole.How to do dat?? eg: file1 this is a cat file2 this is a mat file3 this is a rat file4 cat mat rat Output: this:2 is:2 a:2 cat:1