If you work regularly on a Solaris or systems which do not have the “-r” (recursive grep) for grep, then you know what a lifesaver this command can be. Here is one from command line fu: find . -type f -exec awk ‘/linux/ { printf “%s %s: %s\n”, FILENAME, NR, $0; }’ {} \; The [...]
Archive of posts tagged regular expression
GREP_COLORS – change the colors in the GREP output.
Today we will look at the variable GREP_COLORS. This variable determines the colour that is used with the grep command. You can look at the man page of the grep command to see what the various options mean. Here is the excerpt from the man command: GREP_COLORS Specifies the colors and other attributes used to [...]
bash regular expressions
Here are some quick links on bash regular expressions, pretty good links to bookmark, if you use, regular expressions in bash regularly. I especially like the tldp link at number 3. http://www.linuxjournal.com/content/bash-regular-expressions http://www.ibm.com/developerworks/library/l-bash.html http://tldp.org/LDP/abs/html/parameter-substitution.html#VARMATCH http://wellington.pm.org/archive/200005/codegen/index9.htm Related articles Renaming a whole bunch of files at once, in bash (ask.metafilter.com) bash math (amit-agarwal.co.in) Efficiency of regular expressions [...]
Hi, I am Amit Agarwal. I am the sole author of this blog and have worked on Linux for more than 10 Years now. My favourite is Fedora and am using Fedora at home and office.
I hope you will enjoy reading my blog and get in touch with me if you have any suggestions or complaints.
