I am having issues of editing huge C++ file where I am using sed to convert List(something) to List<something> why I am doing this because our List has been converted to template.
Command I have written in small shell file is like this
sed -i '/List/s/(/</g' $1
sed -i '/List/s/)/>/g' $1
But this command is converting the whole line associated with List to angular braces like,
some_Fun(List(something)) to some_Fun<List<something>>
I don't want sed to change some_Fun<> , sed should keep some_Fun() and change only List() to List<>.
You can use this sed:
sed 's/\(List\)(\([^)]*\))/\1<\2>/g' file
(OR)
sed 's/List(\([^)]*\))/List<\1>/g' file
I am trying replace value in a config file with sed in cshell.
However it gives me the error:
sed: 1: "/usr/local/etc/raddb/mo ...": extra characters at the end of l command
I am trying the following command:
sed -i "s/private_key_password = .*/private_key_password = test/" /usr/local/etc/raddb/mods-available/eap
I have looked at examples of sed to do this but they all look similar with what I am doing, what is going wrong here?
FreeBSD sed requires an argument after -i to rename the original file to. For example sed -i .orig 's/../../' file will rename he original file to file.orig, and save the modified file to file.
This is different from GNU sed, which doesn't require an argument for the -i flag. See sed(1) for the full documentation. This is one of those useful extensions to the POSIX spec which is unfortunately implemented inconsistently.
Right now, the "s/private_key_password = .*/private_key_password = test/" parts gets interpreted as an argument to -i, and /usr/local/etc/raddb/mods-available/eap gets interpreted as the command. Hence the error.
So you want to use:
sed -i .orig "s/private_key_password = .*/private_key_password = test/" /usr/local/etc/raddb/mods-available/eap
You can then check if the changes are okay with diff and remove /usr/local/etc/raddb/mods-available/eap.orig if they are.
I want to replace the
/fdasatavol/ankit
to
/fdasatavol_sata/ankit
Can anyone help me out in this?
to write to a new file (without modifying file1):
sed 's/fdasatavol/fdasatavol_sata/g' file1 > file2
or to replace in the original file:
sed -i 's/fdasatavol/fdasatavol_sata/g' file1
This will replace each occurrence of fdasatavol with fdasatavol_sata:
sed 's/fdasatavol/&_sata/g'
If your input has occurrence of fdasatavol that are not in /fdasatavol/ankit and you don't want to substitute these then use:
sed 's#/fdasatavol/ankit#/fdastatavol_sata/ankit#g'
Note: you can use any character as sed's delimilter to aviod the confusion with the parrtern contiaing /. sed prints to stdout by default, if you are happy with the changes produced by sed you can use the -i option to store back to the file.
sed -i 's/fdasatavol/&_stat/g' file
I'm on Linux command line and I have file with
127.0.0.1
128.0.0.0
121.121.33.111
I want
127.0.0.1:80
128.0.0.0:80
121.121.33.111:80
I remember my colleagues were using sed for that, but after reading sed manual still not clear how to do it on command line?
You could try using something like:
sed -n 's/$/:80/' ips.txt > new-ips.txt
Provided that your file format is just as you have described in your question.
The s/// substitution command matches (finds) the end of each line in your file (using the $ character) and then appends (replaces) the :80 to the end of each line. The ips.txt file is your input file... and new-ips.txt is your newly-created file (the final result of your changes.)
Also, if you have a list of IP numbers that happen to have port numbers attached already, (as noted by Vlad and as given by aragaer,) you could try using something like:
sed '/:[0-9]*$/ ! s/$/:80/' ips.txt > new-ips.txt
So, for example, if your input file looked something like this (note the :80):
127.0.0.1
128.0.0.0:80
121.121.33.111
The final result would look something like this:
127.0.0.1:80
128.0.0.0:80
121.121.33.111:80
Concise version of the sed command:
sed -i s/$/:80/ file.txt
Explanation:
sed stream editor
-i in-place (edit file in place)
s substitution command
/replacement_from_reg_exp/replacement_to_text/ statement
$ matches the end of line (replacement_from_reg_exp)
:80 text you want to add at the end of every line (replacement_to_text)
file.txt the file name
How can this be achieved without modifying the original file?
If you want to leave the original file unchanged and have the results in another file, then give up -i option and add the redirection (>) to another file:
sed s/$/:80/ file.txt > another_file.txt
sed 's/.*/&:80/' abcd.txt >abcde.txt
If you'd like to add text at the end of each line in-place (in the same file), you can use -i parameter, for example:
sed -i'.bak' 's/$/:80/' foo.txt
However -i option is non-standard Unix extension and may not be available on all operating systems.
So you can consider using ex (which is equivalent to vi -e/vim -e):
ex +"%s/$/:80/g" -cwq foo.txt
which will add :80 to each line, but sometimes it can append it to blank lines.
So better method is to check if the line actually contain any number, and then append it, for example:
ex +"g/[0-9]/s/$/:80/g" -cwq foo.txt
If the file has more complex format, consider using proper regex, instead of [0-9].
You can also achieve this using the backreference technique
sed -i.bak 's/\(.*\)/\1:80/' foo.txt
You can also use with awk like this
awk '{print $0":80"}' foo.txt > tmp && mv tmp foo.txt
Using a text editor, check for ^M (control-M, or carriage return) at the end of each line. You will need to remove them first, then append the additional text at the end of the line.
sed -i 's|^M||g' ips.txt
sed -i 's|$|:80|g' ips.txt
sed -i 's/$/,/g' foo.txt
I do this quite often to add a comma to the end of an output so I can just easily copy and paste it into a Python(or your fav lang) array
How can I replace text with other text using GNU sed? I was hacked and am just trying to see if I can remove some of the code that was placed into my php files. The text is of the
eval(base64_decode('blah'));
variety. All of them are identical, I would just like to find and replace all of them in all files. I have tried some commands, but they either needlessly alter and damage text in the files or simply fail to launch at all.
sed -i 's/text/other text/g' filename
(sed -i "s/eval(base64_decode('blah'))/huh/g" filename in your case).
find . -name \*.php -exec sed -i "s/text/other/g" {} \;
You may want to do a dry run and leave off the -i and just direct it to a file as a test first.
On Mac the -i usually doesn't work.