Useful bash script for a developer
As being a web developer, often I have to do some boring and repeated tasks on files and directories like renaming, removing spaces and replace symbols etc. If we manually do such tasks, it will take long time, effort and it will kill our interest.
In such instance, we can simply use small, one or two line bash scripts to finish the whole jobs in seconds. Below, you can find few bash scripts that useful for developers.
script to append a .txt extension to all .log files in a folder
Iterate over the current directory, get all files with .log and append .txt to the end of the entire filename:
for i in *.log*; do mv "$i" "$i.txt"; done
Script to make file names lower case in a folder
Converts all the file names with .txt extension in a directory to lowercase.
for i in *.txt; do mv "$i" "`echo $i| tr [A-Z] [a-z]`"; done
Rename all files with a common name and an increment in a folder
Example: Rename all .png files like my_image_1.png, my_image_2.png etc
j=0;for i in *.png; do echo "my_image_"$j".txt"; j=$(($j+1)); done
Get all JPG files in a folder and create the appropriate HTML list tags for them and add them to a file
for i in *.jpg; do echo "<li><img src='images/$i' alt='' /></li>"; done > list_items.html
Remove spaces from file names in a folder
for i in *.html; do mv "$i" "`echo $i| tr -d ' '`"; done
Replace spaces in file names with underscore symbol in a folder
for i in *.html; do mv "$i" "`echo $i| tr ' ' '_'`"; done
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