Commands tagged wildcard (4)

  • prevent accidents while using wildcards

    alternative for "echo rm *.txt". Just doubletab the command you are willing to use and it will show you the affected files. Show Sample Output


    25
    rm *.txt <TAB> <TAB>
    boschi · 2010-11-04 13:58:15 12
  • prevent accidents and test your command with echo

    if you're using wildcards * or ? in your command, and if you're deleting, moving multiple files, it's always safe to see how those wildcards will expand. if you put "echo" in front of your command, the expanded form of your command will be printed. It's better safe than sorry. Show Sample Output


    11
    echo rm *.txt
    alperyilmaz · 2010-10-27 07:26:26 7
  • useful tail on /var/log to avoid old logs or/and gzipped files

    with discard wilcards in bash you can "tail" newer logs files to see what happen, any error, info, warn... Show Sample Output


    5
    tail -f *[!.1][!.gz]
    piscue · 2009-03-06 16:24:44 9
  • Equivelant of a Wildcard

    This is exactly the same as a wildcard - good for times when wildcards are disabled and when you want have a wildcard of a directory that is not your current ({`ls /path/to/dir`}). Does not work on older versions of Bash though.


    0
    `ls`
    matthewbauer · 2009-08-17 03:56:05 7

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Find the package that installed a command

Nmap list IPs in a network and saves in a txt

Delete recursively only empty folders on present dir

back ssh from firewalled hosts
host B (you) redirects a modem port (62220) to his local ssh. host A is a remote machine (the ones that issues the ssh cmd). once connected port 5497 is in listening mode on host B. host B just do a ssh 127.0.0.1 -p 5497 -l user and reaches the remote host'ssh. This can be used also for vnc and so on.

Connect-back shell using Bash built-ins
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display systemd log entries for sshd using "no-pager" (a bit like in pre-systemd: grep sshd /var/log/messages)
In pre-systemd systems, something like: "# grep sshd /var/log/messages" would display log events in /var/log/messages containing "sshd". # journalctl -u sshd --no-pager The above command displays similar results for systemd systems. (Note that this needs to be run with root permissions to access the log data.)

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