/bin/bash #ifcondition istrue if["myfile"=="myfile"]; then echo"true condition" fi #ifcondition isfalse if["myfile"=="yourfile"]; then echo"false condition" fi Output Example 3 In this example, we demonstrate how to compare numbers by using the if statement:...
Remember, using the -eq operator for comparison in the above example is not recommended, as it is used to compare numeric values. We will learn it in a while. Until now, we have learned two ways (the true condition and the [[...]] command), and both are case-sensitive, which means...
The not equal “-ne” controller inside the Linux Bash programming language compares two possible values when they’re not equivalent. The not equal function in Ubuntu bash is denoted by the symbol “-ne,” which would be the initial character of “not equal.” Also included is the “!=”...
Moved the original quiz2 to be strings4, since it only tested strings anyways. Reworked quiz2 into a new exercise that tests more chapters. Renamed option to options. options1: Rewrote parts of the exercise to remove the weird array iteration stuff. Moved generics3 to be quiz3. Moved box...
strings tar unzip rpm2cpio cpio ar cabextract Most of these are installed by default on many Linux systems, but cabextract and rpm2cpio in particular might need to be installed. On windows systems, you may need: ar 7z Expand pdftotext Windows has Expand installed by default, but ar and 7z...
Likewise, we can compare strings. Note thatfooandbarare holding strings now, instead of numbers: foo=Hello bar=Worldif[[$foo!=$bar]]thenecho"The strings are not equal"fiCopy After execution, we’ll see the following output: The strings are not equalCopy ...
If foo were a readable empty file, what would be the output on your screen of this two command sequence: PATH=/etc/passwd:/bin/ls:/bin/cat ; /bin/cat foo a. bash: ls: command not found b. /bin/cat: foo: No such file or directory c. bash: /bin/cat: command not found d. ...
integers or strings.- Biswajit :-) 1 Kudo Reply Muthukumar_5 Honored Contributor 03-29-2005 04:47 PM Re: if.. then..else statement You can do this as,if [[ $var1 -eq $var2 && $var3 -eq $var4 ]]then echo "Correct"else echo "wrong"fiExample:#!/bin/bashvar1=...
Note how it uses integers like pointers, as the array of forests is actually just an array of ints. Also note how it stores the pivot goat, wolf and lion values at the final 3 spots in the array, as the ‘forLessThan’ function can only compare two parts of the same array. If yo...
strings tar unzip rpm2cpio cpio ar cabextract Most of these are installed by default on many Linux systems, but cabextract and rpm2cpio in particular might need to be installed. On windows systems, you may need: ar 7z Expand pdftotext Windows has Expand installed by default, but ar and 7z...