How to invert a grep expression

regex linux grep
sMaN picture sMaN · Dec 7, 2010 · Viewed 232k times · Source

The following grep expression successfully lists all the .exe and .html files in the current directory and sub directories. 

ls -R |grep -E .*[\.exe]$\|.*[\.html]$

How do I invert this result to list those that aren't a .html or .exe instead. (That is, !=.)

Answer

Eric Fortis picture Eric Fortis · Dec 7, 2010

Use command-line option -v or --invert-match,

ls -R |grep -v -E .*[\.exe]$\|.*[\.html]$

Related questions

Match two strings in one line with grep

I am trying to use grep to match lines that contain two different strings. I have tried the following but this matches lines that contain either string1 or string2 which not what I want. grep 'string1\|string2' filename So …

Read More
Regex (grep) for multi-line search needed

Possible Duplicate: How can I search for a multiline pattern in a file ? Use pcregrep I'm running a grep to find any *.sql file that has the word select followed by the word customerName followed by the word from. This …

Read More
grepping using the "|" alternative operator

The following is a sample of a large file named AT5G60410.gff: Chr5 TAIR10 gene 24294890 24301147 . + . ID=AT5G60410;Note=protein_coding_gene;Name=AT5G60410 Chr5 TAIR10 mRNA 24294890 24301147 . + . ID=AT5G60410.1;Parent=AT5G60410;Name=AT5G60410.1;Index=1 Chr5 …

Read More