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I need to compare strings in shell:
var1="mtu eth0"
if [ "$var1" == "mtu *" ]
then
# do something
fi
But obviously the "*" doesn't work in Shell. Is there a way to do it?
561
Using String. equals() :In Java, string equals() method compares the two given strings based on the data/content of the string. If all the contents of both the strings are same then it returns true. If any character does not match, then it returns false.
Details. Use == operator with bash if statement to check if two strings are equal. You can also use != to check if two string are not equal.
Use the Unix tools. The program cut will happily shorten a string.
if [ "$(echo $var1 | cut -c 4)" = "mtu " ];
... should do what you want.
156
bashShortest fix:
if [[ "$var1" = "mtu "* ]]
Bash's [[ ]] doesn't get glob-expanded, unlike [ ] (which must, for historical reasons).
bash --posixOh, I posted too fast. Bourne shell, not Bash...
if [ "${var1:0:4}" == "mtu " ]
${var1:0:4} means the first four characters of $var1.
/bin/shAh, sorry. Bash's POSIX emulation doesn't go far enough; a true original Bourne shell doesn't have ${var1:0:4}. You'll need something like mstrobl's solution.
if [ "$(echo "$var1" | cut -c0-4)" == "mtu " ]
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