Menu
grep -r -L "[^0-9 ]" . [^0-9 ] will match anything that doesn't contain digits or spaces (thought that would be fitting or else all files that contain spaces and number would be discarded).
To Display Line Numbers with grep MatchesAppend the -n operator to any grep command to show the line numbers. We will search for Phoenix in the current directory, show two lines before and after the matches along with their line numbers.
Inverting Grep Expression In order to invert a grep expression, we just need to make use of the -v flag along with the grep command. Consider the command shown below that will print all the files that are ending with .go extension.
Using the wc -l command is the most used and also the easiest way to find line numbers of a given file.
try:
grep -n "text to find" file.ext | cut -f1 -d:
If you're open to using AWK:
awk '/textstring/ {print FNR}' textfile
In this case, FNR is the line number. AWK is a great tool when you're looking at grep|cut, or any time you're looking to take grep output and manipulate it.
All of these answers require grep to generate the entire matching lines, then pipe it to another program. If your lines are very long, it might be more efficient to use just sed to output the line numbers:
sed -n '/pattern/=' filename
Bash version
lineno=$(grep -n "pattern" filename)
lineno=${lineno%%:*}
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With