Sar*_*rah 2 sed awk text-processing
例如,我只想在命令行中打印类似的内容。假设我有一个名为 file.txt 的文件。
What is life?
how are you?
hi
whatup
this is more than
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我想使用 awk 在命令行上打印出来,但如果字符数大于 7,那么输出应该是这样的。
What is
life?
how are
you?
hi
whatup
this is
more than
Run Code Online (Sandbox Code Playgroud)
所以基本上当我使用 awk 时,如果字符数大于 7,它会将输出中的行分成两行。
ter*_*don 10
虽然您可以在awk
以下位置执行此操作:
$ awk '{sub(/.{8}/,"&\n"); print}' file
What is
life?
how are
you?
hi
whatup
this is
more than
Run Code Online (Sandbox Code Playgroud)
它确实不是这项工作的最佳工具。你可以更简单地做同样的事情:
$ fold -sw 8 file
What is
life?
how are
you?
hi
whatup
this is
more
than
Run Code Online (Sandbox Code Playgroud)
你也可以使用 Perl:
$ perl -pe 's/.{8}/$&\n/' file
What is
life?
how are
you?
hi
whatup
this is
more than
Run Code Online (Sandbox Code Playgroud)
您可以使用awk
,如其他答案中提供的那样,但您也可以使用fmt
fmt -s -w8 file
What is
life?
how are
you?
hi
whatup
this
is more
than
Run Code Online (Sandbox Code Playgroud)