[Sussex] Future Talk [Was: Label and partition external hard drive]

[D.Morris at brighton.ac.uk]

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Hi all,

Just been using this one liner which may inspire people to use the power of the CLI

I wanted to change my email address which was in lots of source files, and I'm too lazy to open
every file, plus this is much quicker.

First of all I get a list of all the files which match my old email address, which I then strip of
svn specific files and binaries.

Then for every result I grab the filename
For every filename I use sed to replace the email domain, which I then echo out to replace the file.


for file in `grep -HR "<david.morris at greenacre.no-ip.com>" * | grep -v Binary | grep -v .svn | cut
- -f1 -d:`; do sed 's/greenacre.no-ip.com/code-fish.co.uk/g' "$file" > "$file"; done



On 02/03/11 10:12, Dominic Humphries wrote:
>> I've said it before but I will say it again: The power of the CLI comes
>> from chaining commands together!
>>
>>     $ ps -ef | grep ^user | grep program | awk '{print "kill " $2}' | sh
>>
>> There!  A one line script to find a set of processes run by the same
>> user account and kill them.  I took me a couple of minutes to build the
>> script up, bit by bit more or less as I did above on site live.
> 
> Another example that I use about a hundred times a day is this:
> 
> function vai {
>     found=`find . -path *$1 | grep -v blib | grep -v cache | grep -v .svn`
>     vi $found
>     }
> 
> It lives in my .bashrc and gives me a new command, 'vai'
> 
> What this does is search all your working directory's subdirs. for the filename you specify. So instead of having to type:
> 
>   vi really/long/and/annoying/path/name/to/the/file/I/actually/want/to/edit.txt
> 
> I can just type 
> 
>   vai edit.txt
> 
> Since there are dozens of files in all kinds of paths that I frequently need to edit, something as simple as this makes a huge difference to how quickly I can make edits. Especially when I know the filename I want but am not entirely sure of where exactly it is..
> 
> The "find" gets the full pathname of matching files; The 'grep -v' parts strip out directories I don't want to look for files in. 
> 
> If there's any GUI way to open files by name without having to specify the path, I would love to know about it.. It'd beat the hell out of all the double-clicking on folder icons :o)
> 
> Dominic
> 
> 
> --
> Sussex mailing list
> Sussex at mailman.lug.org.uk
> E-mail Address: sussex at mailman.lug.org.uk
> Sussex LUG Website: http://www.sussex.lug.org.uk/
> https://mailman.lug.org.uk/mailman/listinfo/sussex

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