Replacing in Found Files
Replace one string by another in all file found by find.
find . -name *whatyouwant* -exec perl -pi.bak -e 's/TEXT_TO_REPLACE/TEXT_TO_REPLACE_IT_WITH/g' {} \;
25
Jun
Tag Archives: replace
18
Dec
Using M4 Command
This command takes an input file and substitutes strings inside it with the parameters passed, similar to substituting for variables. For example, here is an input file:
$ cat temp
The COLOR fox jumped over the TYPE fence.
Were you to substitute the strings “COLOR” by “brown” and “TYPE” by “broken”, you could use:
$ m4 -DCOLOR=brown -DTYPE=broken temp
The brown fox jumped over the broken fence.
Else, if you want to substitute “white” and “high” for the same:
$ m4 -DCOLOR=white -DTYPE=high temp
The white fox jumped over the high fence.
http://www.oracle.com/technology/pub/articles/advanced-linux-commands/part2.html
25
Nov
Simple Sed Command
Change all occurrences of ‘one’ to ‘two’ in the file.txt file in the grep example, enter this:
sed 's/one/two/g' file.txt
29
Jun
Replace \n with another String
The command to convert all \n in a file to another string – very useful for list code generation.
perl -ne 's/\\n/\',\'/g;print;' file.txt>new.txt
12
Mar
Command to Replace a String in all Files in Current Directory
Replaces all instance of ‘<old string>’ with ‘<new sting>’ in all the files of the current directory.
perl -pi -e "s/<old string>/<new string>/g;" *
[tags]perl,command,rename,replace,string[/tags]
07
Mar
Changing separator with Perl
This will join all lines of a file together. Sometimes I have a list of something in a file, one line per item and want to convert it to a comma(colon,tab)-separated line (with no trailing separator of course) that can be used as a command-line parameter to some other tool.
perl -e '@_=; chomp(@_); print join(";",@_);' < data_file