search:linux shell script if equal相關網頁資料

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日期:2024-09-03
The TEST-COMMAND list is executed, and if its return status is zero, the ... More information about this subject can be found in the Bash documentation. ... valid UNIX command, any executable program, any executable shell script or any shell ......
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日期:2024-09-03
Brief tutorial describing how to do string comparisons. Recently updated thanks to comments from our users. Our original tutorial needed correcting for the case if  ......
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日期:2024-09-02
Note that integer and string comparison use a different set of operators. ... String=' ' # Zero-length ("null") string variable. if [ -z "$String" ] then echo "\$String is null. ... bin/bash # str-test.sh: Testing null strings and unquoted strings, #...
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日期:2024-09-08
Linux shell script math/number equality tests Here's how you perform math/number/arithmetic tests using the Bourne and Bash shells: n1 -eq n2 Test if n1 equals n2 n1 -ne n2 Test if n1 is not equal to n2 n1 -lt n2 Test if n1 is less than n2 n1 -le n2 Test ...
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日期:2024-09-01
How do u change ur directory using a shell script?? ... When you run the script in this manner, all the changes you make to env variables will remain after your exit the script....
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日期:2024-09-06
bin/bash number=1 if [ $number = "1" ]; then echo "Number equals 1" else echo " Number does not equal 1" fi. When you ......
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日期:2024-09-08
At first sight you are doing an assignation = in your if statement instead of a compare == Basically you'll need ......
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日期:2024-09-07
Note the separation between integer and string comparison. integer comparison. -eq. is equal to. if [ "$a" -eq "$b" ]. -ne....