ASCII art of letters, with the letters using their own characters
2017年4月5日 · A BBBBBB CCCCC A A B B C C A A B B C A A BBBBBB C AAAAAAA B B C A A B B C C A A BBBBBB CCCCC or better yet, something more compact, like: A BBBB CCCC …
Need to move the last line of the file to second line of the same file
2014年12月12日 · I have a file 'test' in linux with below data. aaaaaa bbbbbb cccccc dddddd eeeeee I need to cut the last line of this file and put it in the second position. It must look like …
How can I iterate through each line of a file using each line to ...
2019年1月20日 · AAAAAA BBBBBB I have file 2 which contains: 11111 22222 33333 and file 3 which contains: 22222 11111 33333 I want to insert each line in file 1 into file 2 and 3 …
How to ssh to remote server using a private key?
2011年10月25日 · IMPORTANT NOTE: The client can have many private keys and select based on an arbitrary name in their private ~/.ssh/config file where Host= gives the arbitrary name, …
What does the 'seclabel' mount option do? - linux
2015年3月19日 · I use Nagios and check_mk to monitor some servers. I get several warnings about the mount options of a couple of servers. The message is: 'OK - missing: seclabel'. I …
What does sed -i '1d' do? - Unix & Linux Stack Exchange
2016年1月20日 · 3. b) sed '1!d' file.txt Prints the contents of file.txt; excluding all but the first line; to the standard output. (In other words; only the first line gets printed). Also compatible with …
network: destination host unreachable - Unix & Linux Stack …
There are two cases what a computer can do, when it has to forward an IP package: First case: Say the destination IP of the incoming package is 10.20.30.40 and the interface on which the …
How does tr '[a-z]' '[n-za-m]' work? - Unix & Linux Stack Exchange
2011年8月30日 · a turned into x, b turned into y, and c was left unchanged because it wasn't in the first set. All the user did in this case is run their e-mail address through the same filter …
PAM: Authentication failure, with valid password
Command pamtester -v auth pknopf authenticate pamtester: invoking pam_start(auth, pknopf, ...) pamtester: performing operation - authenticate Password: pamtester: Authentication failure …
permissions - chmod: cannot access 'file' : No such file or directory ...
Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their …