his is an example of a search with grepwith a coloured output: To get this result open a terminal and use your favourite editor to change the file .bashrc in your home directoy, in this example I’ll use vim $ vim ~/.bashrc And add these 2 lines: alias grep=”grep –color=auto” export GREP_COLORS=’0;31′ Save and try Full Article…
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grep with color output
grep is capable of color-highlighting the matched string in its output. But, by default, that option is turned off. $ grep abc a_file.txt abcdef There are 3 color options available to you: –color=auto –color=always –color=never With color=always, it colors the matched string. $ grep –color=always abc a_file.txt abcdef Quite often, you want to page through Full Article…
color grep and ls on Linux
Ever wondered why grep shows the matched text/string in colour where as its not the same on other systems? or why ls on you system shows different colour for different file-types while the output on your buddy’s desktop, running some other flavour of linux, is so lifeless(without colours)? Well, thats because of the magic of Full Article…
Combine find and grep for a complex search
find /srv/www/*/htdocs/system/application/ -name “*.php” -exec grep “debug (” {} \; -print This should recursively search the folders under application for files with .php extension and pass them to grep. An optimization on this would be to execute: find /srv/www/*/htdocs/system/application/ -name “*.php” -print0 | xargs -0 grep -H “debug (” find is not even needed for Full Article…
grep
grep grep is an acronym that stands for “Global Regular Expressions Print”. grep is a program which scans a specified file or files line by line, returning lines that contain a pattern. A pattern is an expression that specifies a set of strings by interpreting characters as meta-characters. For example the asterisk meta character (*) Full Article…
Excluding grep from process list
ps aux | grep daemon_name | awk “{ print $2 }” grep’s -v switch reverses the result, excluding it from the queue. So make it like: ps aux | grep daemon_name | grep -v grep | awk “{ print $2 }” Upd. You can also use -C switch to specify command name like so: ps -C daemon_name -o pid= Full Article…