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| Latest revision | Your text | ||
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== Comparison script == | == Comparison script == | ||
| − | The script below takes two arguments on the command-line and compares them via <code>[https://en.wikipedia.org/wiki/Diff diff]</code> command. It also echoes generic human-readable answer saying whether two file system objects are equal. As <code>diff</code> | + | The script below takes two arguments on the command-line and compares them via <code>[https://en.wikipedia.org/wiki/Diff diff]</code> command. It also echoes generic human-readable answer saying whether two file system objects are equal. As <code>diff</code> compares directories as well as files, paths to directories are valid arguments as well. |
<source lang="bash"> | <source lang="bash"> | ||
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if [ -f "$1" -a -f "$2" ]; then | if [ -f "$1" -a -f "$2" ]; then | ||
| − | + | : # OK, do nothing here | |
elif [ -d "$1" -a -d "$2" ]; then | elif [ -d "$1" -a -d "$2" ]; then | ||
| − | + | : # OK, do nothing here | |
else | else | ||
if [ -f "$1" ]; then | if [ -f "$1" ]; then | ||
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fi | fi | ||
| − | if diff | + | if diff "$1" "$2" > /dev/null 2>&1; then |
echo 'Equal' | echo 'Equal' | ||
else | else | ||
