grep Examples and Free Source Code

Linux bash script to check internet connection not working...

linux bash grep connection ping

Extract the line which are in comments with // aa well as /*...*/...

awk sed grep

ZGrep for first occurence of pattern *after* given line...

awk grep zgrep

How to grep the exact match and print only that match...

shell awk grep

How to check if particular files from list of filenames present in directory with regex or grep in b...

regex bash shell file grep

grep -f does not find files in loop...

grep

Show all 4 digit numbers (but not the whole line and exclude special characters appended to number) ...

regex bash grep

"Command not found" in ifconfig | grep IF statement...

grep ifconfig

grep obtains pattern from a file but printing not only the whole match word...

linux grep

Shell execute grep command within sed replacement not as expected...

linux bash shell sed grep

Clean Nmap output [IP:Port]...

awk grep output nmap

How can I search for a matching substring in a file with regex and return only the substring?...

grep

Search in files 0x1F (Unit Separator) using Linux utilities (e.g. grep)...

linux file grep

How to not conflict with filename when combining grep commands?...

grep

Extracting numbers from an email address prior to the @ sign...

regex email grep

How to use grep command to list dot based names...

regex grep

Find youtube url in json file with ruby...

ruby string search grep

Bash grep doesn't return the first regex match...

regex shell grep

extract and print all occurrences of disk file (.img) from a configuration file...

awk sed split grep

How to remove IP(s) from a text file based on given CIDR?...

bash awk grep cidr

How to process each output line in a loop?...

bash shell grep

remove carriage return in bash script, or ignore it when using mv / mkdir...

bash ubuntu grep line-endings

gawk or grep: single line and ungreedy...

java regex awk grep git-bash

How can I get a list of the words that have six or more consonants in a row using the grep command?...

regex string bash grep letter

Find multiple occurences of same string...

ubuntu sed grep

Better performance substitute for egrep...

bash awk grep

Reverse regex pattern match - how to tell which pattern matched a result (Bash)...

bash variables grep

Parse out log file sections by thread...

bash perl awk sed grep

Extract FASTA sequences (with version number) using sequence IDs (without version number) listed in ...

unix awk grep extract fasta

Grep a word and need to replace the above line for that particular tag...

bash shell awk sed grep