Logical AND operation with egrep

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# 1  
Old 09-01-2009
Logical AND operation with egrep

Hi All,

I need to perform logical AND operation using UNIX command.
string(space separated) is coming through web. And i dont want to create
files for that. i want to use only source file.

Any help would be appreciated.

# 2  
Old 09-01-2009
Tools chained (piped) commands performs AND

Joe, Linda, Bob, Terry
Kim, Rhonda, Steve, Joy

cat file1 | grep "Joe" | grep "Linda"

would output that first line of
Joe, Linda, Bob, Terry

Or, are you asking something different? Sometimes easier to understand with examples.
# 3  
Old 09-01-2009
ok here is the example :-

below is the string coming from web application

string="str1 str2 str3"

i want to search a record/records which contain all three string by using source file only. Dont want to create any new file.

important :- string coming through web is space separated.
# 4  
Old 09-01-2009
Tools Are the strings variable?

Or is there something else not immediately clear?

cat file | egrep "str1 str2 str3"

to find all records that have those three entries.
# 5  
Old 09-01-2009
strings are coming through web application in a variable.

cat file|egrep "str1 str2 str3" not working.Smilie
# 6  
Old 09-01-2009
Originally Posted by sam25
strings are coming through web application in a variable.

cat file|egrep "str1 str2 str3" not working.Smilie
cat test | egrep "string1 string2 string3"
string1 string2 string3

cat test
string1 string2 string3

That works, I think you need to provide more information.
# 7  
Old 09-01-2009
sorry i forgot to mention one thing my file is CSV file,
and that command is not working with CSV file.
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