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| Click here to return to the 'Mac vs. UNIX line breaks' hint |
There are many places where PERL is incredibly handy. This is one of them. You can use
PERL on the command line to change the line ending ( a 'r' (Mac) to a 'n' (UNIX) ):
perl -pi -e 's/r/n/g'
I have put an alias in my .bashrc file that looks like this:
alias fle='perl -pi -e 's/r/n/g' '
Now I just type fle and everything works file. I use 'fle' for 'fix line endings,' but
yo can use anything you want to.
Perl is one thing that I would definitely like to learn more about. Thanks for showing me the
easier method!
-rob.
how did u add the shortcut to .bashrc ?
and where and how can i do this ?
where is .bashrc
If you didn't install the BASH shell, then you won't have a .bashrc.
If you are using the default shell for the terminal (tcsh I think), then you should have a .tcshrc file in /Users/username/ directory. To check, open the terminal and type ls -al and hit return. If it is there you can edit it using by typing pico .tcshrc. If it is not there, pico .tcshrc will create it.
Enter you're aliases in the format
alias name 'command in quotes' for example
alias dante 'telnet dante.u.washington.edu'
so when you type dante at the terminal, it will open a telnet session to dante.u.washington.edu.
You have to quit the terminal and restart it to see the effects.
if you are using the zsh shell (a lot like BASH I'm told), then the syntax is
alias name='command'
have fun
Using this can result in there being blank lines between each and every line that was there before.
To prevent this use
alias fle='perl -pi -e 's/rn?/n/g' '
The difference here is the n? which tells to to also replace existing n that is there as long as it is attached to a r.
I hope this helps people
Richard Canning Quip time event mac os.
I found that I needed to do like 100 at a time and it wasn't going to cut it to pass one file at a time. This is what I did:
1. if you don't have a bin directory in your home directory make one go to the terminal and tyep 'mkdir bin'
2. the in the bin directory create a file called 'fle' with your favorite editor and then put in this one line:
for T in `ls -a $*`; do perl -pi -e 's/rn?/n/g' $T; done
I chose 'T' for no particular reason.
3. Save he file and in the terminal type: chmod 755 fle while in the bin directory.
4. If you want to use it right away, you need to first close whatever terminal window you're using and open a new one. For some reason when creating new shell scripts this has to be done before you can execute them.
That's it. Now when you want to do a whole directory you can do:
fle * (or simply fle by itself)
or specify file-names: fle *.php or fle myfile.txt
it will work with one or mulitple files.
You don't have to close your terminal. Just type 'rehash'. Note also that the path to your bin directory has to be in your PATH for this to work.
A somewhat more helpful (for me) version of this script reads like this:
Name wip mac os.
The -li is unnecessary and the files I happen to want to deal with are of the TXT sort. However, * would cover everything as well.
Particle tag mac os. The important change, though, is the quotes around $filename (or $T in the above example) so that file names with spaces in them are handled correctly by perl.
find . -type f -name 'DEMO*' -exec perl -pi -e 's/r/n/g' {} ; this changes all files starting with 'DEMO'. Obviously, you can change that to '*' or whatever suits your needs.
Thought you might like to know how that Perl works:
perl -pi -e 's/r/n/g'
OK let's break that down:
perl - pretty obvious, runs the Perl interpreter
-p - says to perl, 'for every line in the file, do this.'
-i - says to perl, 'send output back to the same file you read from'
-e - says 'run the next bit as if it's a script'
s/r/n/g : This is the bit that does the work
s// - the substitute command, The '/' are just separators
r - a 'return'
n - a 'newline
g - means 'global', ie for every ocurrance.
So, put that together, and it means 'substitute every r with n'
(PS - I couldn't get the backslashes to display in this message !)
:)
Yea, it's a bit of a problem due to a bug in the way that Geeklog handles them at present.
The only way to make sure they show up (along with frontslashes, brackets, quotes, etc) if
you post in HTML is to encode them:
' = '
/ = /
< = <
> = >
\ =
I edited your post in the database to insert the characters so it reads correctly. This bug will
hopefully be addressed in the next release.
You can also use vi to replace the Mac line breaks using the following command:
:%s/^M/^M/g
NOTE: You will need to type shift+: to get to the colon prompt
in vi you can then enter the command starting with the % symbol.
The ^M actually maps to control+shift+v followed by control+shift+m
(+'s are not included), so in actuality the command looks like this:
:%s/control V control M/control V control M/g
Many thanks to my former Perl teacher for this one--
I used it a whole lot of times in my Perl class. 8^)
Mike
Apple Trade In
Get credit toward your new iMac.
Just trade in your eligible computer for credit or recycle it for free. It's good for you and the planet.*
Apple Card
Get 3% Daily Cash back with Apple Card.
Getting to know you mac os. And pay over time, interest-free when you choose Apple Card Monthly installments.†
Apple and Education
Empowering educators and students to move the world forward.
Mac for Business
Super sumo skater mac os. Get the power to take your business to the next level.
| Click here to return to the 'Mac vs. UNIX line breaks' hint |
There are many places where PERL is incredibly handy. This is one of them. You can use
PERL on the command line to change the line ending ( a 'r' (Mac) to a 'n' (UNIX) ):
perl -pi -e 's/r/n/g'
I have put an alias in my .bashrc file that looks like this:
alias fle='perl -pi -e 's/r/n/g' '
Now I just type fle and everything works file. I use 'fle' for 'fix line endings,' but
yo can use anything you want to.
Perl is one thing that I would definitely like to learn more about. Thanks for showing me the
easier method!
-rob.
how did u add the shortcut to .bashrc ?
and where and how can i do this ?
where is .bashrc
If you didn't install the BASH shell, then you won't have a .bashrc.
If you are using the default shell for the terminal (tcsh I think), then you should have a .tcshrc file in /Users/username/ directory. To check, open the terminal and type ls -al and hit return. If it is there you can edit it using by typing pico .tcshrc. If it is not there, pico .tcshrc will create it.
Enter you're aliases in the format
alias name 'command in quotes' for example
alias dante 'telnet dante.u.washington.edu'
so when you type dante at the terminal, it will open a telnet session to dante.u.washington.edu.
You have to quit the terminal and restart it to see the effects.
if you are using the zsh shell (a lot like BASH I'm told), then the syntax is
alias name='command'
have fun
Using this can result in there being blank lines between each and every line that was there before.
To prevent this use
alias fle='perl -pi -e 's/rn?/n/g' '
The difference here is the n? which tells to to also replace existing n that is there as long as it is attached to a r.
I hope this helps people
Richard Canning Quip time event mac os.
I found that I needed to do like 100 at a time and it wasn't going to cut it to pass one file at a time. This is what I did:
1. if you don't have a bin directory in your home directory make one go to the terminal and tyep 'mkdir bin'
2. the in the bin directory create a file called 'fle' with your favorite editor and then put in this one line:
for T in `ls -a $*`; do perl -pi -e 's/rn?/n/g' $T; done
I chose 'T' for no particular reason.
3. Save he file and in the terminal type: chmod 755 fle while in the bin directory.
4. If you want to use it right away, you need to first close whatever terminal window you're using and open a new one. For some reason when creating new shell scripts this has to be done before you can execute them.
That's it. Now when you want to do a whole directory you can do:
fle * (or simply fle by itself)
or specify file-names: fle *.php or fle myfile.txt
it will work with one or mulitple files.
You don't have to close your terminal. Just type 'rehash'. Note also that the path to your bin directory has to be in your PATH for this to work.
A somewhat more helpful (for me) version of this script reads like this:
Name wip mac os.
The -li is unnecessary and the files I happen to want to deal with are of the TXT sort. However, * would cover everything as well.
Particle tag mac os. The important change, though, is the quotes around $filename (or $T in the above example) so that file names with spaces in them are handled correctly by perl.
find . -type f -name 'DEMO*' -exec perl -pi -e 's/r/n/g' {} ; this changes all files starting with 'DEMO'. Obviously, you can change that to '*' or whatever suits your needs.
Thought you might like to know how that Perl works:
perl -pi -e 's/r/n/g'
OK let's break that down:
perl - pretty obvious, runs the Perl interpreter
-p - says to perl, 'for every line in the file, do this.'
-i - says to perl, 'send output back to the same file you read from'
-e - says 'run the next bit as if it's a script'
s/r/n/g : This is the bit that does the work
s// - the substitute command, The '/' are just separators
r - a 'return'
n - a 'newline
g - means 'global', ie for every ocurrance.
So, put that together, and it means 'substitute every r with n'
(PS - I couldn't get the backslashes to display in this message !)
:)
Yea, it's a bit of a problem due to a bug in the way that Geeklog handles them at present.
The only way to make sure they show up (along with frontslashes, brackets, quotes, etc) if
you post in HTML is to encode them:
' = '
/ = /
< = <
> = >
\ =
I edited your post in the database to insert the characters so it reads correctly. This bug will
hopefully be addressed in the next release.
You can also use vi to replace the Mac line breaks using the following command:
:%s/^M/^M/g
NOTE: You will need to type shift+: to get to the colon prompt
in vi you can then enter the command starting with the % symbol.
The ^M actually maps to control+shift+v followed by control+shift+m
(+'s are not included), so in actuality the command looks like this:
:%s/control V control M/control V control M/g
Many thanks to my former Perl teacher for this one--
I used it a whole lot of times in my Perl class. 8^)
Mike
Use the following shell command:
tr -d 'r' < file.txt > file.txt
This will remove the carriage returns (^M) and leave only the unix linefeeds.
Alternatively:
tr 'r' 'n' < file.txt > file.txt
This will replace the carriage returns (^M) with unix linefeeds.
tr -d 'r' < file.txt > file.txtThe escaping backslashes got stripped in these examples. They should be:
[.]
tr 'r' 'n' < file.txt > file.txt
tr -d 'r' < file.txt > file.txtand
Pigeon Break Mac Os Download
tr 'r' 'n' < file.txt > file.txt---
David Sewell
White Hall, Virginia
Pigeon Break Mac Os Download
alias macless 'tr 'r' 'n' < !^ |& less'
--
Would be convenient if that capability were an option to 'relevant' command-line utilities, like diff.
Install TextWrangler and use twdiff instead. :)
