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Is there replacement for cat on Windows
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Windows type command works similarly to UNIX cat.
Example 1:
type file1 file2 > file3
is equivalent of:
cat file1 file2 > file3
Example 2:
type *.vcf > all_in_one.vcf
This command will merge all the vcards into one.
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array_push() with key value pair
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So what about having:
$data['cat']='wagon';
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How to redirect output of an already running process [duplicate]
...e Redirecting Output from a Running Process.
Firstly I run the command cat > foo1 in one session and test that data from stdin is copied to the file. Then in another session I redirect the output.
Firstly find the PID of the process:
$ ps aux | grep cat
rjc 6760 0.0 0.0 1580 376 pts/5 S...
How to create a file in Linux from terminal window? [closed]
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Create the file using cat
$ cat > myfile.txt
Now, just type whatever you want in the file:
Hello World!
CTRL-D to save and exit
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In the shell, what does “ 2>&1 ” mean?
... actually be interpreted as "redirect stderr to a file named 1". & indicates that what follows is a file descriptor and not a filename. So the construct becomes: 2>&1.
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Confused about stdin, stdout and stderr?
... Because those aren't technically files. They're device nodes, indicating a specific device to write to. UNIX may present everything to you as a file abstraction but that doesn't make it so at the deepest levels.
– paxdiablo
Aug 2 '10 at 5:44
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Why are these numbers not equal?
...presented exactly in binary?
Is floating point math broken?
Canonical duplicate for "floating point is inaccurate" (a meta discussion about a canonical answer for this issue)
Comparing scalars
The standard solution to this in R is not to use ==, but rather the all.equal function. Or rather, sinc...
File content into unix variable with newlines
...ive the result you want. See the following transcript for a demo:
pax> cat num1.txt ; x=$(cat num1.txt)
line 1
line 2
pax> echo $x ; echo '===' ; echo "$x"
line 1 line 2
===
line 1
line 2
The reason why newlines are replaced with spaces is not entirely to do with the echo command, rather...
How to read from a file or STDIN in Bash?
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Here is the simplest way:
#!/bin/sh
cat -
Usage:
$ echo test | sh my_script.sh
test
To assign stdin to the variable, you may use: STDIN=$(cat -) or just simply STDIN=$(cat) as operator is not necessary (as per @mklement0 comment).
To parse each line fro...
Add up a column of numbers at the Unix shell
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. . .| x=$(echo <(cat)); echo $((0+${x// /+}+0)) if you want all bash all the time:
– qneill
Apr 3 '15 at 23:31
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