Bash Script Convert "String" to Number
I Need to Change a String to Interger, Because I Check the Size of File (Extract with: Stat -C%S $Filename) with a Number, Follow the Complete Script: #!...
i need to change a string to interger, because i check the size of file (extract with : stat -c%s $filename) with a number, follow the complete script :
#!/bin/bash
# Variable that contain path destination file
path=/sobstitude
# Variable for size
size=1000
# Loop for file scan
for filename in /test/*;
do
# Take the size of file
filesize=$(stat -c%s $filename)
# Check if the file is empty
if [ $filesize > $size ]
then
# Replace file
mv $filename $path
fi
done
exit 0;
3 Answers
In bash/sh variables contain strings, there is no strict concept of integers. A string may look like an integer and it's enough.
stat -c%s $filename should return a string that looks like an integer.
In your case the main problem is in the redirection operator > (you probably now have files with names that are numbers in the working directory). This snippet:
[ $filesize > $size ]
should be
[ "$filesize" -gt "$size" ]
And use double quotes around variable substitutions and command substitutions.
No need to "convert" data types. You can use -gt or -lt to compare numbers:
➜ size="$(stat -c%s test.mp4)"; [[ "$size" -gt 4000 ]] && echo "bigger" || echo "smaller"
bigger
➜ size="$(stat -c%s test.mp4)"; [[ "$size" -gt 400000 ]] && echo "bigger" || echo "smaller"
smaller
The > is not wrong in principle. You can use arithmetic expressions to perform the comparison.
I've used [[ in place of [ for its extended features.
Note that all variable expansions should be double-quoted. Particularly with $filename and $path, if any of those contain whitespace, your script will fail.
Guys i've solved after change this :
if ((filesize > size))
Now work, thanks for support
Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.
