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                ??一站式輕松地調用各大LLM模型接口,支持GPT4、智譜、豆包、星火、月之暗面及文生圖、文生視頻 廣告
                功能: 1)連接多個文件并打印到屏幕輸出 2)重定向到指定文件中 3)把多個文件合并成一個文件 4)創建編輯新文件 5)非交互式的編輯或追加內容到文件尾部 [root@fenfa tmp]# cat >>file4.txt <<EOF > this is one > this is two > EOF [root@fenfa tmp]# cat file4.txt this is one this is two 6)清空文件內容 (cat /dev/null > file1.txt) 此命令一般用來顯示單個文件內容,或者將幾個文件內容連接在一起顯示 語法: cat 【option】【file】 常用選項: -n 從1開始對所有輸出的內容按行編號,包括空白行 -b 按行編號,忽略空白行 -E 在每一行的尾部顯示$符 范例1: [root@fenfa tmp]# cat >> text.txt <<EOF > this is one server > this is two server > EOF---------》這里按回車才能結束,EOF必須成對出現,但是也可以換成別的成對標簽來替換,需要注意的是,結尾的EOF必須要頂格寫 范例2: [root@fenfa tmp]# cat -n test.txt 1 this is one 2 3 this is two 4 5 this is three 6 7 one [root@fenfa tmp]# cat -b test.txt 1 this is one 2 this is two 3 this is three 4 one
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