[英]using sed or similar to modify lines in a file
I have a huge file composed of the following: 我有一个巨大的文件由以下组成:
this is text
1234.1234567
this is another text
1234.1234567
and so on 等等
I would like to transfer it to: 我想把它转移到:
this is text:1234.1234567
this is another text:1234.1234567
is this possible using sed? 这可能使用sed吗? or any other similar command? 或任何其他类似的命令?
Thanks 谢谢
If you just want to join lines using :
as separator, you could use paste
: 如果您只想使用:
作为分隔符来连接行,则可以使用paste
:
paste -d : - - < file.txt
Or using awk
: 或者使用awk
:
awk -v sep=: '{ if (NR % 2 == 0) { print prev sep $0 } else prev = $0 }' file.txt
If you have lines containing just alphabets and other containing floating point numbers, you can do the following: 如果您的行只包含字母和其他包含浮点数的行,则可以执行以下操作:
awk '/[a-zA-Z]+/ {printf "%s:", $0}
/[0-9.]+/ {print $0}' data
data
is the filename. data
是文件名。 You can redirect the output to another file. 您可以将输出重定向到另一个文件。
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