You can use System to execute complex shell commands in awk

The shell command can be executed directly in awk.

[Plain]View PlainCopy

2. [Email protected]:~$ Touch A
4. [Email protected]:~$ Touch b
6. [Email protected]:~$ cat A.txt
8. A
10. B
12. [Email protected]:~$ awk ' {cmd= ' rm ' $0;system (CMD)} ' A.txt
14. [Email protected]:~$ ls
16. A.txt dd important MySQL py testdata
18. daemon.py Desktop Installer mysql_install_db.sh Stu
20. Data DFADSFADFADF jdk1.6.0_33 Public stu.txt
22. [Email protected]:~$

We assemble the commands in awk and finally execute them using system (). Read in a file name each time and delete the file.

----------------------------------------

Below we use awk to execute commands to create some files.

[Plain]View PlainCopy

2. [Email protected]:~$ awk ' Begin{count=10;i=0;while (i<count) {cmd= "touch" I ". txt"; I++;system (CMD)}} '
4. [Email protected]:~$ ls
6. 0.txt 4.txt 8.txt dd jdk1.6.0_33 py
8. 1.txt 5.txt 9.txt Desktop MySQL Stu
10. 2.txt 6.txt daemon.py Important mysql_install_db.sh Stu.txt
12. 3.txt 7.txt Data Installer public testdata

You can use System to execute complex shell commands in awk