Sometime just before Sunday 28 April 2002 04:30 pm Kahli R. Burke Wrote about:[EUG-LUG:2456] Re: asynchronous file access: ? use chattr +S ? I tried it. It worked.. It will work on one file at a time, and Ill need to use a tmpfile as in cat file.html | perl -ne 's/alt\s*=\s*"(.*?)"/alt="$1" title="$1"/; print' > tmp.html;mv tmp.html file.html
I should be able to make a script to do all the files in the directory... Ill see if i can modify it to do other things too... Thanks! Jamie : Linux Rocks ! wrote: : > I do have a question about grep and stuff... I would like to replace text : >with different text (like change alt= tags to title= or duplicate alt tags : > to title tags... so, If i have something like : > : > : >and I want : ><a href="www.rocksolidnetworks.com"><img src="rock.jpg" alt="picture of : > rock" title="picture of a rock"></a> : > : >What is the easiest way (yes, I could read awk, and sed and grep...) but I : >basicly just want a rename for inside files (not just filenames). : : Both vi and emacs provide a regular expression replace mechanism. In : : vi, try: : :%s/<regex to find>/<replacement>/g : : (Note that the command starts with a colon) : : I'n emacs, it's C-M-%, or access it from the edit menu. : : When I want to do something more sophisticated, I'll usually write a : quick Perl script (or one-liner), which is how I would do what you want : above: : : cat file.html | perl -ne 's/alt\s*=\s*"(.*?)"/alt="$1" title="$1"/; print' : : This says: cat the file into perl, and for each line (-n option), : evaluate (-e option) the script in the single quotes: : : susbstitute(s/<regex>/<replacement>/): : alt<optional whitespace>=<optional whitespace>"<any character in : between the quotes, save it in $1>"... : replace with: : alt="<whatever matched in the parentheses" title="<whatever matched : in the parentheses" : : print the altered string (to stdout) : : Try it and see if it works for you... You can do the same stuff with sed : or awk. : : Kahli -- for setting/changing your eug-lug mailinglist subscription use this website: http://wWw.RockSolidNetworks.com/eug-lug.html no microsoft products were used to produce this message.
