标签：分享 black end tail 还需要 color 暂停 定向 nbsp
来源：
cat命令
1、滚屏显示文件，大文件会滚的很快，Ctrl+S暂停滚屏，Ctrl+Q继续滚屏，Ctrl+C中断滚屏。
1 [super@SuPer ~]$ cat 1.sh 2 #!/bin/sh 3 #author: 4 #date: 5 #describe: 6 #modify: 7 #versions: 8 # 9 echo ‘Hello,shell!‘ 10 [super@SuPer ~]$
1 [super@SuPer ~]$ cat 1.sh 2.sh 2 #!/bin/sh 3 #author: 4 #date: 5 #describe: 6 #modify: 7 #versions: 8 # 9 echo ‘Hello,shell!‘ 10 #!/bin/sh 11 set -x 12 echo -n "The system is Linux?" 13 echo answer Y or N. 14 read answer 15 # 16 if [ -f $answer ] 17 then 18 echo "No input anything." 19 exit 20 fi 21 if [ $answer = Y ] 22 then 23 echo "Yes,This is Linux System." 24 else 25 echo "No,This is Windows System." 26 fi 27 [super@SuPer ~]$
2、创建一个新的文件，需要注意会进入文件编辑状态，此时的输入会分行保存，每按一次Enter键保存一次，Ctrl+C结束当前任务。
1 [super@SuPer ~]$ cat > 1.txt 2 AAAA 3 SSSS 4 DDDD^C 5 [super@SuPer ~]$ cat 1.txt 6 AAAA 7 SSSS 8 [super@SuPer ~]$
1 [super@SuPer ~]$ cat << 1 > 2.txt 2 > BBBB 3 > DDDD 4 > 1 5 [super@SuPer ~]$ cat 2.txt 6 BBBB 7 DDDD 8 [super@SuPer ~]$
1 [super@SuPer ~]$ cat > 1.txt << EOF 2 > AAAA 3 > BBB 4 > EOF 5 [super@SuPer ~]$ cat 1.txt 6 AAAA 7 BBB 8 [super@SuPer ~]$ cat > 1.txt << EOF 9 > CCCC 10 > DDD 11 > EOF 12 [super@SuPer ~]$ cat 1.txt 13 CCCC 14 DDD 15 [super@SuPer ~]$
1 [super@SuPer ~]$ cat > 1.txt << EOF 2 > sss 3 > sss 4 > EOF 5 [super@SuPer ~]$ cat 1.txt 6 sss 7 sss 8 [super@SuPer ~]$ cat >> 1.txt << EOF 9 > aaa 10 > vvv 11 > EOF 12 [super@SuPer ~]$ cat 1.txt 13 sss 14 sss 15 aaa 16 vvv 17 [super@SuPer ~]$
1 [super@SuPer ~]$ cat 1.txt 2 sss 3 sss 4 aaa 5 vvv 6 [super@SuPer ~]$ cat >> 1.txt 7 s^Hdsds 8 dsd[super@SuPer ~]$ cat 1.txt 9 sss 10 sss 11 aaa 12 vvv 13 dsds 14 dsd[super@SuPer ~]$
1 [super@SuPer ~]$ cat 1.txt 2 sss 3 sss 4 aaa 5 vvv 6 dsds 7 dsdDDD 8 [super@SuPer ~]$ cat >> 1.txt 9 EEE 10 [super@SuPer ~]$ cat 1.txt 11 sss 12 sss 13 aaa 14 vvv 15 dsds 16 dsdDDD 17 EEE 18 [super@SuPer ~]$
3、文件合并
1 [super@SuPer ~]$ cat > 1.txt 2 AAA 3 [super@SuPer ~]$ cat > 2.txt 4 BBB 5 [super@SuPer ~]$ cat 1.txt 6 AAA 7 [super@SuPer ~]$ cat 2.txt 8 BBB 9 [super@SuPer ~]$ cat -n 1.txt >> 2.txt 10 [super@SuPer ~]$ cat 1.txt 11 AAA 12 [super@SuPer ~]$ cat 2.txt 13 BBB 14 1 AAA 15 [super@SuPer ~]$
1 [super@SuPer ~]$ cat 1.txt 2 AAA 3 [super@SuPer ~]$ cat 2.txt 4 BBB 5 1 AAA 6 [super@SuPer ~]$ cat 1.txt 2.txt > 3.txt 7 [super@SuPer ~]$ cat 3.txt 8 AAA 9 BBB 10 1 AAA 11 [super@SuPer ~]$
1 [super@SuPer ~]$ cat 3.txt 2 AAA 3 BBB 4 1 AAA 5 [super@SuPer ~]$ cat /dev/null > 3.txt 6 [super@SuPer ~]$ cat 3.txt 7 [super@SuPer ~]$
1 [super@SuPer txt]$ ll 2 总用量 4 3 -rw-rw-r-- 1 super super 0 10月 8 09:58 1.txt 4 -rw-rw-r-- 1 super super 15 10月 8 09:40 2.txt 5 -rw-rw-r-- 1 super super 0 10月 8 09:43 3.txt 6 [super@SuPer txt]$ cat 4.txt 1>/dev/null 7 cat: 4.txt: 没有那个文件或目录 8 [super@SuPer txt]$ cat 4.txt 2>/dev/null 9 [super@SuPer txt]$
【注】目前没有发现cat编辑下有修改文本的功能，还需要使用vi再编辑。
标签：分享 black end tail 还需要 color 暂停 定向 nbsp
原文地址：http://www.cnblogs.com/superQAQ/p/7636544.html
