LittleGreenCat ревизій цього gist . До ревизії
1 file changed, 22 insertions
bash.sh(файл створено)
| @@ -0,0 +1,22 @@ | |||
| 1 | + | # True if the shell variable varname is set (has been assigned a value). | |
| 2 | + | [[ -v ${varname} ]] | |
| 3 | + | ||
| 4 | + | # True if the length of the string is zero. | |
| 5 | + | [[ -z ${string} ]] | |
| 6 | + | ||
| 7 | + | # True if the length of the string is non-zero. | |
| 8 | + | [[ -n ${string} ]] | |
| 9 | + | ||
| 10 | + | # True if the strings are equal. = should be used with the test command for POSIX conformance. When used with the [[ command, this performs pattern matching as described above (Compound Commands) | |
| 11 | + | [[ ${string1} == ${string2} ]] | |
| 12 | + | ||
| 13 | + | # True if the strings are not equal. | |
| 14 | + | [[ ${string1} != ${string2} ]] | |
| 15 | + | ||
| 16 | + | # True if string1 sorts before string2 lexicographically. | |
| 17 | + | [[ ${string1} < ${string2} ]] | |
| 18 | + | ||
| 19 | + | # True if string1 sorts after string2 lexicographically. | |
| 20 | + | [[ ${string1} > ${string2} ]] | |
| 21 | + | ||
| 22 | + | Опубликовано в https://t.me/gitgate | |
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