Venkat ganesh

Sometimes, instead of running a program manually we need it to be automated. This helps when we need some program to execute on regular intervals or schedule it for a particular time. Hence to handle such situations, linux gives us a tool called cron. what is a cron? Cron syntax

Git tutorials for beginner. Git installation Git configuration Initialize repository Working with directory Committing Git stash Create a branch Navigate between branches Merge branches Delete branches Rename branches

Git stash Save the current working directory changes to a state. Git stash list List of stashes Git stash apply Apply the stash to current directory Git stash drop Drop last stash Git stash clear Clear all the stashes

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1. Display list of files from a folder and stored it an array. 2. Select a file based on index. #!/usr/bin/env bash list_files=() i=0 for n in ruby/* do   list_files[i]+=$n   i=`expr $i + 1` done #echo $list_files k=0 echo ${#list_files[@]} while [ $k -lt ${#list_files[@]} ] do  echo $k ":"  ${list_files[$k]}  k=`expr $k + 1` done read value file_name=${list_files[$value]} echo $file_name cmd="ruby $file_name" eval $cmd  list_files stored files inside ruby folder. Repeating all the files with index. Once we select an index the program will run.