logsave - Unix, Linux Command


logsave: save output of a Linux command to a file.


  • logsave [ -asv ] logfile cmd_prog [ ... ]

    logsave program will execute cmd_prog with the specified argument(s), and save a copy of its output to logfile. If the containing directory for logfile does not exist, logsave will accumulate the output in memory until it can be written out. A copy of the output will also be written to standard output. If cmd_prog is a single hyphen ('-'), then instead of executing a program, logsave will take its input from standard input and save it in logfile logsave is useful for saving the output of initial boot scripts until the /var partition is mounted, so the output can be written to /var/log.


    Tag Description
    -a This option will cause the output to be appended to logfile, instead of replacing its current contents.
    -s This option will cause logsave to skip writing to the log file text which is bracketed with a control-A (ASCII 001 or Start of Header) and control-B (ASCII 002 or Start of Text). This allows progress bar information to be visible to the user on the console, while not being written to the log file.
    -v This option will make logsave to be more verbose in its output to the user.



    To save the output of the find command to a file called file.txt

    # logsave file.txt find . | head -n 10




    To capture the output of a program and sends it too a log-file.

    The -a parameter will let you append to the log-file.

    $ logsave -a output.log echo "hello world"


    hello world
    $ cat output.log
    Log of echo hello world
    Sun Jan  8 12:46:36 2017

    hello world

    Sun Jan  8 12:46:36 2017