Unary Operator Expected Error In Unix

I have two variables var="" var1=abcd Here is my shell script code if [ $var == $var1 ]; then do.

Unary Operator Overloading in C++ ( HINDI)

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I have two variables var="" var1=abcd Here is my shell script code if [ $var == $var1 ]; then do something else do something fi If I run this code it will prompt.

17 Nov 2006. Veran estoy trabajando en un comando en bash que me envia un error pero no tengo idea porque., ya que la sintaxis del IF esta correcta y no veo nada malo. este es el comando : Pid = 1 if [ $Pid == 1 ]; then echo "es igual" fi este es el error: [: ==: unary operator expected. Gracias.

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/usr/local/bin/backup: line 125: conditional binary operator expected /usr/local/bin /backup: line 125: syntax error near `/proc/mounts' /usr/local/bin/backup: line 125: `if [[ cat /proc/mounts | grep '/media/backup' > /dev/null -a test -e /media/backup/ backup_testfile ]];'. I've tried different variations, including the.

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Sep 19, 2017. expr: syntax error. Critical Failure in CheckSpace_(). Unix/Installer/MathInstaller: line 3484: [: =: unary operator expected. Unix/Installer/MathInstaller: line 3488: [: =: unary operator expected. Unix/Installer/MathInstaller: line 3484: [: =: unary operator expected. Unix/Installer/MathInstaller: line 3488: [: =: unary.

This bug will likely reaffirm the paranoia of admins who worry about the reliability of public clouds – after all, if an operator. the grave error follows Google making a dramatic price cut to its Drive cloud storage systems ahead of an.

Arithmetic operators (-,+,*,/,%), Assignment operator (=), c++ shorthands (+=, -=,*=,/=,%=) Unary operators (-), Increment (++) and Decrement

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2015年7月15日. シェルスクリプトでif文を使った際に構文は問題ないのに実行すると「unary operator expected」と表示される場合があります. 下記のスクリプトは、/var/tmp/testのファイル数 を変数に代入し、if文の処理をしています。実行するとエラーになります。実際には/var/ tmp/testのディレクトリはありません。「ls_chk」変数がnullとなり(if [ -ge.

Sep 20, 2002. If you do not type a response but simply press Enter or Return, the script reports an error similar to the following:./buggy3.sh: [: =: unary operator expected. To determine where this error occurs, it is probably best to run the entire script in shell tracing mode: $ /bin/sh -x./buggy3.sh. The output is similar to the.

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I’m trying to create a simple bash script to check if the website is down and for some reason the "and" operator doesn’t work: #!/usr/bin/env bash WEBSITE=domain.com.

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I am having a problem with an example script that is given in the textbook 'Unix and System Administration Handbook'. The script is below. I am receiving an error.

Bash/Shell Programming – Binary Operator Expected. – Dec 10, 2009. scnotify.sh: line 3: [: 2841.c: binary operator expected which for the life of me I couldn't figure out. Eventually I figured it out though…and all that the error was, was instead of a single '[' and ']' wrapping the comparison, it requires a double… i.e. if [[ -n `ls | grep something` ]]; then echo "Success"; fi. Hope this.

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This article was written by Antwan