Roy's musings

I wrote a small utility script that can be used to run a small snippet of Python code like "perl -ne". I find it very useful for my needs. Hope it helps you too. Any suggestions welcome. You can find the script as a gist here .

I had earlier written a small snippet about setting the window title from command line. Based on my experience, I felt that I could make it a lot simpler. Here is version of the same function. function wtitle {     if [ -z "$ORIG_PS1" ] ; then         ORIG_PS1=$PS1     fi     export PS1="\[\033]0;$1 - \u@\h:\w\007\]$ORIG_PS1" }

I usually do a lot of log analysis. I search for patterns in multiple files in multiple hosts. Then I collate the result and do processing on the result lines. A sample output looks like: /tmp/input1.txt: line containing pattern /tmp/input2.txt: another line containing pattern  As it turns out, I don't need the file names in the grep result. I always used to remove the file name prefixes using a Perl one-liner. Silly me! I was pretty sure that this was a common problem and it must have been solved already. When I referred to the man page of grep , I came across this gem: -h . If you specify this option, grep will not prefix each line with a the file name. There is also -H option which will prefix each line with a filename even if you are searching in only one file.