unary operator expected bash
./zhu-kanamori.sh: line 173: [: 1: unary operator expected means that [ expects -eq to have two operands, but it was only passed one. This happened because ... ,...and != is not a unary operator (that is, one capable of taking only a single ... Pretty much covers all of your cases, and no empty string or unary concerns.
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 unary operator expected bash 相關參考資料
-bash: [: =: unary operator expected. when no parameter given ...
You would need to add quotes around $1. if [ "$1" = "-r" ]; then echo "I am here" fi. When $1 is empty you are getting if [ = "-r"] which is a syntax error. https://stackoverflow.com BASH 'unary operator expected' - Stack Overflow
./zhu-kanamori.sh: line 173: [: 1: unary operator expected means that [ expects -eq to have two operands, but it was only passed one. This happened because ... https://stackoverflow.com Bash script error [: !=: unary operator expected - Stack Overflow
...and != is not a unary operator (that is, one capable of taking only a single ... Pretty much covers all of your cases, and no empty string or unary concerns. https://stackoverflow.com Compare integer in bash, unary operator expected - Stack Overflow
Your problem arises from the fact that $i has a blank value when your statement fails. Always quote your variables when performing comparisons if there is the ... https://stackoverflow.com unary operator expected - Stack Overflow
If you know you're always going to use bash, it's much easier to always use the double bracket conditional compound command [[ ... ]] , instead of the ... https://stackoverflow.com Unary operator expected in Bash - Stack Overflow
You are using indirection. If the variable $BLOCK1FRAN} points to an empty variable, you'll get the error message. Make sure that the variable pointed by ... https://stackoverflow.com unary operator expected in shell script when comparing null value ...
If you're using bash, you can use the [[ syntax, which doesn't require the quotes: if [[ $var = $var1 ]]; then. Even then, it doesn't hurt to quote the variable reference ... https://stackoverflow.com unary operator expected的解決方法@ 血落閣:: 隨意窩Xuite日誌
200910281548unary operator expected的解決方法 ?shell. 在寫linux shell時，遇到if這種判斷句. mask=`awk -F = '/static_msk=/print $2}' $network` if [ $mask ... https://blog.xuite.net Writing shell scripts - Lesson 9: Stay Out Of Trouble
To do this, create the following script called trouble.bash. Be sure to enter it exactly as ... /trouble.bash: [: =: unary operator expected. Number does not equal 1. http://linuxcommand.org |