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If variable contains a pathname then ACTION item

 
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# 1  
Old 05-18-2012
If variable contains a pathname then ACTION item
I have an input file that contains a name of a file followed by the pathname like so

Code:
input1
/here/is/the/path/to/input1
input2
/here/is/the/path/to/input2
input3
/here/is/the/path/to/input3

I'm trying to write a bash script where if a path name is present, grep for a certain key phrase. I tried the following, but to no avail, it does not work.

Code:
#!/bin/sh
while read line
do
if [["$line" == /]] ; then
	grep "SEARCH PHRASE" $line
fi
done < infile > ???

As an added twist, I want to have the searched grep results replace the pathname ($line if it is a path). I know, it's pretty weird...
# 2  
Old 05-18-2012
Code:
while read line
do
  [ -f "$line" ] && grep "SEARCH PHASE" "$line" || echo "It is not an file"
done < infile

This User Gave Thanks to itkamaraj For This Post:
tester213
# 3  
Old 05-18-2012
Quote:
Originally Posted by tester213
As an added twist, I want to have the searched grep results replace the pathname ($line if it is a path). I know, it's pretty weird...
Replace it with what?
# 4  
Old 05-18-2012
Quote:
Originally Posted by itkamaraj
Code:
while read line
do
  [ -f "$line" ] && grep "SEARCH PHASE" "$line" || echo "It is not an file"
done < infile

very cool!

---------- Post updated at 10:28 AM ---------- Previous update was at 10:13 AM ----------

itakamaraj, can you briefly explain your code? Not sure where the -f switch is being used. I'm asking because for my grep statement, I'm using an OR like so
Code:
grep -E "PHRASE1 | PHRASE2" "$line"

but this no longer works when merged with your code.
# 5  
Old 05-18-2012
The -f checks if the file actually exists before running grep.

You have extra spaces in there which grep will attempt to match literally.

Code:
#wrong
grep -E "PHRASE1 | PHRASE2" "$line"
# right
grep -E "PHRASE1|PHRASE2" "$line"

Otherwise, I don't see anything wrong with it.

Code:
while read line
do
  [ -f "$line" ] && grep -E "a|b|c|d" "$line" || echo "It is not an file"
done < infile

# 6  
Old 05-18-2012
Quote:
Originally Posted by Corona688
The -f checks if the file actually exists before running grep.

You have extra spaces in there which grep will attempt to match literally.

Code:
#wrong
grep -E "PHRASE1 | PHRASE2" "$line"
# right
grep -E "PHRASE1|PHRASE2" "$line"

Otherwise, I don't see anything wrong with it.

Code:
while read line
do
  [ -f "$line" ] && grep -E "a|b|c|d" "$line" || echo "It is not an file"
done < infile

you're right. i had extra spaces. thanks!
 
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