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15.
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Use 'tail -f file' to watch a log file as messages get appended, and use 'tail -100 file' to change the count of lines read from the file.
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type: Plain text
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(no translation yet)
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Located in
ubuntu-server-tips:48
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16.
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An easy way to see what processes own which network connections: 'sudo netstat -tup' for connections and 'sudo netstat -tupl for listening process.
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type: Plain text
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(no translation yet)
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Located in
ubuntu-server-tips:51
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17.
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The 'history' command will show you the commands you've used before. Alternatively you can use the up arrow button to look through them.
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type: Plain text
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(no translation yet)
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Located in
ubuntu-server-tips:54
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18.
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To make a backup without typing the full path twice: 'cp /long/path/to/file/name{,.orig}' to create a copy with the suffix .orig
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type: Plain text
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(no translation yet)
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Located in
ubuntu-server-tips:57
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19.
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If you executed a command and neglected to use sudo, you can execute "sudo !!" to re-execute the previous command with sudo prepended.
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type: Plain text
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(no translation yet)
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Located in
ubuntu-server-tips:60
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20.
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Install 'denyhosts' to help protect against brute force SSH attacks, auto-blocking multiple attempts.
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type: Plain text
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(no translation yet)
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Located in
ubuntu-server-tips:63
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21.
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Use "iotop" for measuring hard disk I/O (current read/write) usage per application.
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type: Plain text
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(no translation yet)
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Located in
ubuntu-server-tips:66
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22.
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If you are using a PostgreSQL database, use "ptop" to monitor real time usage.
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type: Plain text
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(no translation yet)
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Located in
ubuntu-server-tips:69
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23.
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Use "iftop" to monitor current network activity connections per host.
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type: Plain text
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(no translation yet)
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Located in
ubuntu-server-tips:71
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24.
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Use "pastebinit" to copy a file, or output of a command to a webpage allowing you to share it. e.g. 'pastebinit /proc/cpuinfo' or 'df -h | pastebinit'
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type: Plain text
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(no translation yet)
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Located in
ubuntu-server-tips:75
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