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Bash get yesterday date - Linux Tutorials - Learn Linux Configuration
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bash - How can I count all the lines of code in a directory recursively? - Stack Overflow
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Linux/UNIX: Bash Read a File Line By Line - nixCraft
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bash - How to convert script command output into plain text - Ask Ubuntu
How to Make Decimal Calculations In Bash Using bc - Linux Tutorials - Learn Linux Configuration
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How to save terminal output to file under Linux/Unix bash - nixCraft
Shell Scripting for Beginners – How to Write Bash Scripts in Linux
Bash: How to Calculate Sum After Reading File – Srinimf
The Complete How To Guide of Bash Functions
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Linux Shell: Remove Duplicate Lines from File – TecAdmin
How to write the output of a function to a text file in python - Quora
microsoft excel - Linux command for exporting output to a csv file in separated columns - Super User
Linux Diff Command Help and Examples
How to Save the Output of a Command to a File in Bash (aka the Linux and macOS Terminal)
Omitting the first line from any Linux command output - Stack Overflow
How to Count Lines of a File by Command Line | OSXDaily
