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Matt (Diskussion | Beiträge) Die Seite wurde neu angelegt: „This article holds some notes about scriping in bash. STR="Hello World!" echo $STR == General == A bash script starts in the first line with: #!/bin/bash == Variables == Define variable MY_STR: HW="Hello World!" Read content of the variable and put it to the console: echo $HW == Check if Bash Script Received Parameters == Check if any arguments were passed to the script: if [ $# -eq 0 ] then echo "No…“ |
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This article holds some notes about scriping in bash. | This article holds some notes about scriping in bash. | ||
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A bash script starts in the first line with: | A bash script starts in the first line with: | ||
Version vom 12. Mai 2025, 21:39 Uhr
This article holds some notes about scriping in bash.
General
A bash script starts in the first line with:
#!/bin/bash
Variables
Define variable MY_STR:
HW="Hello World!"
Read content of the variable and put it to the console:
echo $HW
Check if Bash Script Received Parameters
Check if any arguments were passed to the script:
if [ $# -eq 0 ] then echo "No arguments received" fi
$# contains how many arguments were passed to the script.
Check if first argument was empty:
if [ -z "$1" ] then echo "Argument 1 empty" fi
The -z switch will test, if the argument passed is empty. If it is empty, then the expression resolves to true and the body of the if statement is executed.
