The following simple version control script is meant to find the last version number of a given file, increment it, run a given command with the newly created file (e.g., editor), and after that save it to stable. Since it&#39;s simple, it doesn&#39;t check anything since the script would be modified as needed. For instance, if the result won&#39;t be stable, the user can omit the last argument.

However, one major concern of the current functionality is how to implement the following: if the last section after dot has two digits, inc untill 99; if only 1, then inc until 9, then move to the previous section. The versions may have any positive integer number of sections.

    1.2.3.44 -&gt; 1.2.3.45
    1.2.3.9 -&gt; 1.2.4.0
    1.2.3 -&gt; 1.2.4
    9 -&gt; 10

The remaining issue is that it doesn&#39;t wait for a tabbed wine editor to close the file; the goal is to detect when the tab is closed. Also, could you explain how best to make sure that my variable names don&#39;t overwrite existing ones?

You can also offer other improvements.

    #!/bin/bash
    #Tested on bash 4.1.5
    #All arguments in order: &quot;folder with file&quot; &quot;file pattern&quot; cmd [stable name]
    folder=&quot;$1&quot;
    file_pattern=&quot;$2&quot;
    cmd=&quot;$3&quot;
    stable=&quot;$4&quot;
    
    cd &quot;$folder&quot;
    last_version=$(ls --format=single-column --almost-all | \
        grep &quot;$file_pattern&quot; | \
        sed -nr &#39;s/^[^0-9]*(([0-9]+\.)*[0-9]+).*/\1/p&#39; | \
        sort -Vu | \
        tail -n 1)
    last_version_file=$(ls --format=single-column --almost-all | \
        grep &quot;$file_pattern&quot; | \
        grep $last_version | \
        tail -n 1) #tail -n 1 is only needed to get 1 line if there are backup files with the same version number
    new_version=$(echo $last_version | \
        gawk -F&quot;.&quot; &#39;{$NF+=1}{print $0RT}&#39; OFS=&quot;.&quot; ORS=&quot;&quot;) #increments last section indefinitely
    new_version_file=$(echo &quot;$last_version_file&quot; | \
        sed -r &quot;s/$last_version/$new_version/&quot;)
    cp &quot;$last_version_file&quot; &quot;$new_version_file&quot;
    &quot;$cmd&quot; &quot;$new_version_file&quot; &amp; \
        wait #works with gedit but not with wine tabbed editor
    [[ &quot;$stable&quot; ]] &amp;&amp; \
        cp &quot;$new_version_file&quot; &quot;$stable&quot; #True if the length of string is non-zero.

Update:
The following works on my pc, I will update it if improvements or solutions to unsolved problems are found:

    #!/bin/bash
    inc()
    {
    shopt -s extglob
        num=${last_version//./}
        let num++
    
        re=${last_version//./)(}
        re=${re//[0-9]/.}&#39;)&#39;
        re=${re#*)}
    
        count=${last_version//[0-9]/}
        count=$(wc -c&lt;&lt;&lt;$count)
        out=&#39;&#39;
        for ((i=count-1;i&gt;0;i--)) ; do
            out=&#39;.\\&#39;$i$out
        done
    
        sed -r s/$re$/$out/ &lt;&lt;&lt;$num
    }
    
    folder=&quot;$1&quot;
    file_pattern=&quot;$2&quot;
    cmd=&quot;$3&quot;
    stable=&quot;$4&quot;
    
    cd &quot;$folder&quot;
    last_version=$(ls --format=single-column --almost-all | \
        grep &quot;$file_pattern&quot; | \
        sed -nr &#39;s/^[^0-9]*(([0-9]+\.)*[0-9]+).*/\1/p&#39; | \
        sort -Vu | \
        tail -n 1) #--almost-all do not list implied . and ..
    last_version_file=$(ls --format=single-column --almost-all | \
        grep &quot;$file_pattern&quot; | \
        grep $last_version | \
        tail -n 1) #tail -n 1 is only needed to get 1 line if there are backup files with the same version number
    new_version=$(inc)
    new_version_file=$(echo &quot;$last_version_file&quot; | \
        sed -r &quot;s/$last_version/$new_version/&quot;)
    cp &quot;$last_version_file&quot; &quot;$new_version_file&quot;
    &quot;$cmd&quot; &quot;$new_version_file&quot; &amp;&amp; \
        wait #works with gedit but not tabbed wine editor
    [[ &quot;$stable&quot; ]] &amp;&amp; \
        cp &quot;$new_version_file&quot; &quot;$stable&quot; #True if the length of string is non-zero.

I appreciate the variety of solutions that have been offered, for they help with gaining a perspective and drawing a comparison.

All Wine Solutions on Gang of Coders

Total of 1 Wine Solutions

How to increment version number in a shell script?