Can linux cat command be used to write text to a file?

Question

Something like that:

cat "Some text here." > myfile.txt 

Possible? So that the contents of myfile.txt now rewritten to:

 Some text here. 

This does not work for me, but also does not cause any errors.

In particular, he is interested in a solution based on cat (not vim / vi / emacs, etc.). All of the online examples show cat used in conjunction with file input rather than raw text ...

Answer 1

What does echo do:

 echo "Some text here." > myfile.txt 

Answer 2

Looks like you are looking for a document here.

 cat > outfile.txt <<EOF >some text >to save >EOF 

Answer 3

Here is another way -

 cat > outfile.txt >Enter text >to save press ctrl-d 

Answer 4

I use the following code to write the source code in files to update my CPU settings. Hope this helps! Script:

 #!/bin/sh cat > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor <<EOF performance EOF cat > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor <<EOF performance EOF 

This writes the text “performance” to the two files mentioned in the script above. This example overwrites old data in files.

This code is saved as a file (cpu_update.sh) and executes it:

 chmod +x cpu_update.sh 

After that, you can run the script with:

 ./cpu_update.sh 

IF you do not want to overwrite the old data in the file, disable

 cat > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor <<EOF 

from

 cat >> /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor <<EOF 

This will add your text to the end of the file without deleting other data in the file.

Answer 5

 cat > filename.txt 

enter text while EOF to save text usage: ctrl + d

if you want to read this .txt file use

 cat filename.txt 

and one .txt thing is optional, its for your reference.

Answer 6

You can do it the same way:

 user@host: $ cat<<EOF > file.txt $ > 1 line $ > other line $ > n line $ > EOF user@host: $ _ 

I believe that there are many ways to use it.

Answer 7

cat can also be used after | for writing to a file, i.e. channels feed the data stream

Answer 8

Write multi-line text with environment variables using echo :

 echo -e " Home Directory: $HOME \n hello world 1 \n hello world 2 \n line n... \n " > file.txt 

Answer 9

just echoing with the cat

for example

 echo write something to file.txt | cat > file.txt 

Answer 10

Another way to write text to a file using cat would look something like this:

 cat >file.txt <<< Write something here 

Answer 11

The solution to your problem:

echo "Some text goes here"> filename.txt

But you can use the cat command if you want to redirect the output of the file to some other file or if you want to add the output of the file to another file:

cat filename> newfile - Redirect the output of the file name to a new file

cat filename >> newfile - add file name output to newfile

Answer 12

For a text file:

 cat > outfile.txt <<EOF some text some lines EOF 

For a PHP file:

 cat > outfile.txt <<PHP <?php echo "Test"; echo \$var; ?> PHP