Commands by piscue (3)

  • It eases the way of creating cron jobs of backup scripts. Just put this line as cron job, and all your backups are called sequentially. Allows you to forget, when in time, call this backup, just focus on your scripting. Also maintains the way of calling a single backup script when It's needed.


    0
    find /var/scripts -name 'backup*' -exec {} ';'
    piscue · 2013-07-24 21:25:21 2
  • 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 3
  • rpm, sometimes, is not wildcard friendly. To search files installed from package this could be useful. change PACKAGENAME to any package do you want to search Show Sample Output


    1
    rpm -qa | grep PACKAGENAME | xargs rpm -q --filesbypkg
    piscue · 2009-02-26 14:32:12 0

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Setting global redirection of STDERR to STDOUT in a script
You have a script where =ALL= STDERR should be redirected to STDIN and you don't want to add "2>&1" at the end of each command... E.G.: $ ls -al /foo/bar 2>&1 Than just add this piece of code at the beginning of your script! I hope this can help someone. :)

backup directory. (for bash)

display a smiling smiley if the command succeeded and a sad smiley if the command failed
you could save the code between if and fi to a shell script named smiley.sh with the first argument as and then do a smiley.sh to see if the command succeeded. a bit needless but who cares ;)

Get CPU thermal data on MacOS

Convert seconds to [DD:][HH:]MM:SS
Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

Router discovery

Command Line to Get the Stock Quote via Yahoo
Retrieve the current stock price from Yahoo Finance. The output is simply the latest price (which could be delayed). If you want to look up stock for a different company, replace csco with your symbol.

Yet Another Rename (bash function)
Implementation of `rename` for systems on which I don't have access to it.

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"


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