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Parameter Substitution - The Linux Documentation Project
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日期:2024-05-31
#!/bin/bash # length.sh E_NO_ARGS=65 if [ $# -eq 0 ] # Must have command-line args to demo script. then echo "Please invoke this script with one or more command-line arguments." exit $E_NO_ARGS fi var01=abcdEFGH28ij echo "var01 = ${var01}" echo "Length .....看更多