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Shell script variable not found error. ) I think it does not work from .

Shell script variable not found error This is not a bash script, it's an sh script. ext: command not found false blahblah file. I used relative and all was ok. To summarize, how you should do things like this depends on what your goal is. sh. sh, or if you run it with bash your_script_file. When the script is run, it checks if debug is defined by evaluating info exists, a Tcl command which returns 1 if the variable is defined or 0 if it is not. sh (don't forget to do chmod a+x shell. The shebang is not read by sh, it starts with a #, so it's treated as a comment. sh >> /log/path/log. There are 2 main types of shell: bourne shells and c-shells. Since you're replacing it, the script can no longer find the mkdir program. Please check out his blog at PowerShellExplained. /your_script_file. sh, it gives following errors: script. /shell. The PowerShell team thanks Kevin for sharing this content with us. sh or source script. IO. – clt60 . Not quoting strings with spaces often leads to the shell breaking apart a single argument into many. i++ will increment the value after being used; so here inFile and outFile are in fact the same! You probably want to use ++i (which will modify the variable and then use it), or just i + 1 (which will not modify the variable). /scriptname or if the directory it's in is in your PATH, then you can start it using simply scriptname. To call the script I do this:. Don't use the variable PATH. log file showed me that I didn't specify python virtual environment and shell script couldn't import some libraries (ImportError: No module named module_name). The former one is. /test. Since you have the #!/bin/bash shebang line, you don't need to specify The problem is that you are redefining the PATH variable where bash looks into to find the binary files if you don't use a complete path when calling. I am maintaining some IC code, and I am also discovering scripting in Jenkins :) Here is what's happening : At the beginning, all the scripts (Groovy and PowerShell) are retrieved in the workspace from a Git repository. /script, then the kernel will read the shebang, which in your case is #!/bin/bash, and so it executes /bin/bash . now i want to use that out para | The UNIX and Linux Forums I am expecting to use the below variable in my bash script but in case if this is empty or null what would be the best way to handle it and exit from script. Provide details and share your research! But avoid . The most common reason for encountering the “bash: command not found” error in Bash is due Do not put spaces around the "=" character in the final_amount line: variable assignment in shells does not support such spaces because this would conflict with things like If you see I am getting command not found error. Thus, you're setting environment variable varX to the value another_script. When I run the script I get the following errors. FileNotFoundException, and handles any other unexpected exceptions. , each line is terminated with a Line Feed character (decimal 10, hex 0A in ASCII). Adding a directory to the PATH variable. I came across this when using a docker container with entrypoint like this, /bin/sh -c '/path/to/script. 2. If you are using sh then use #!/bin/sh and save your script as filename. bash - then you have to use ==. bash. <my folders here> And then like I am doing in this shell script I set a variable with same name, using set PATH = As @Chepner said, go read BashFAQ #50: I'm trying to put a command in a variable, but the complex cases always fail!. Also the first line in your script #!/bin/bash is only needed if the script is run by itself, like . S. sh will not work because the hashbang line will be ignored and the PATH is an environmental variable in Linux and other Unix-like operating systems that tells the shell which directories to search for executable files (i. In my case, the solution was to log the output of the crontab script: * * * * * /script/path/script. 0\ It looks like you need a slash before the bin: #!/bin/sh # ^ Everything else looks fine I'm assuming that /bin/sh is the location of your executable Bournse shell - if it is not, you would need to adjust as appropriate. You need square brackets and a test case. Within an expression, shell variables may also be referenced by name without using the parameter expansion syntax. I also would double quote the assignment. The second one was about a variable named 'exe' while I had a directory named 'exe' which provided confusion tro linux I think. On the other hand, if you run your script with . You can in awk; but not in shell. sh: 3: setenv: not found. script. Whether you're a beginner or an experienced Bash user, you're The only thing that you need to be aware of when using this method is that all modifications of Shell variables done from the command you pass to run will not propagate to the calling function, because the command runs in a subshell. /ex. sh: 4: setenv: not found. Your script is interpreted by a shell, and from the syntax of your script it appears that you expect it to be interpreted by a bourne shell. -type f -printf "%s %p/n"| sort -nr | head -n10 | nOption The special parameter $0 is expanded to the name of the shell script (e. directory1 = ~/path/to/directory/ actually means "call program directory1 with arguments = and ~/path/to/directory, hence the " command not found". sh: 2: [[: not found mod I saved the script on the current directory and named it ex. There are several sh implementations; DD-WRT, like most embedded devices, uses the sh of BusyBox. If you have a variable with a name that contaings "-", the same error happens. /s1 so that the system will use the shebang (#!/bin/bash) to determine which interpreter to run the script with. Although you can have a parameter expand to a command, you can't have one expand to an assignment — it's just treated as a command at that point, even though it's textually the same (it's like you wrote "SLS_DEBUG=*" sls . This is an oddity of General rule: quote it if it can either be empty or contain spaces (or any whitespace really) or special characters (wildcards). Probably the best solution is to change the first line to #!/bin/bash, assuming you don't mind having the script not be portable to systems that don't have /bin/bash. The syntaxes are not compatible. sh, it should work fine. ext The first two lines are being emitted to stderr, while the next three are being output to stdout. log 2>&1 After that log. But there is the notion of "nameref", where a variable has a variable name as a value, and then the Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company, and our products I am trying to write a script that should take values from a xml file. In that case, the solution is to remove the "-" In shell, spaces are not allowed on either side of the = in a variable assignment. For example you might be doing sh s1. Even though my script was a bash script, source failed to source the exports. Looking for shell script examples to learn and master Bash? Here are 30+ of the best shell script examples, with images to enhance the content and make it more visually appealing. (wondering about the "big picture") :) Too many problematic constructions in the script (grepping html, unquoted variables, UUOC, UUOE, reading lines using for cat, etc) - so just wondering. ;-) So my SHELLOPTS looks like this. Sed , tr may solve the issue in case of you just need to run script, however if you are developing shell script its become annoying each time first convert using, sed/tr command then run your script. Rules for variable definition A variable name could contain any alphabet (a-z, A-Z), any digits (0-9), and an underscore ( _ ). What am I doing wrong here please? Any help appreciated- Bash Newbie Error: line 12: 0=1: command not found line 13: 0=1: command not found My S This way, you're verifying that your script is being executed with the BASH shell, and that it is your script that's being executed and not some other script in your path. /script. If you are using Bash then include #!/bin/bash in the starting of the script and save your script as filename. Running it with sh your_script_file. me@pc:~$ readlink -f $(which sh) /bin/dash So if you chmod +x your_script_file. They should have Unix-style line-endings, i. . if you invoked the script like . exit 2: The built-in command exit terminates the script execution. , so it is very clear why it is -z and not -n)? And why not && instead of ||? Please respond by editing (changing) your answer, not here in comments (without "Edit:", "Update:", or similar - the answer should appear as if it was written today). /script – geirha . nOption() { awk '{total+=$1} END {print total/1024"kb"}' } find . In general, avoid using variables that are all uppercase, these are often used as parameters for the shell or other programs. When setting a shell variable you can't have spaces around the "=". sh Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company @ToniLeigh The exit command only exits the bash process the script is running in. sh: 7: setenv: not found. sh while running the command named by var1 (presuming that expands to exactly one word, which isn't guaranteed unless you fix your quoting). /getconfig. If you don't need to store the command, don't!Storing commands is difficult to get right, so if you don't need to, just skip that mess and execute it directly: @Ashfame with sh script you are running the command sh with the argument script, which makes sh read and execute the commands in that file. As an example, if you run a shell script with CRLF end-of-line characters in a UNIX-based system and in the /bin/sh shell, it is possible to encounter some errors like the following I've got after running I have this function in a bash script, to create a new jekyll post; but it returns the argument as command not found. Here is the xml file :- `<manifestFile> <productInformation> <publicationInfo> <pubID Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company You only need to add it to your environment variables, just follow the following two simple steps: 1. ” There’s just no need – nobody will think you’re stupid, and the forums are all about asking questions. . This usually happens if the command is not When bash is run using the name sh, it disables most of its extensions, such as the [[ testing operator. If it is defined, the script can then test it later to determine if it should print debugging information internal to the script. In my script I have the following declaration: pcre-version="8. Asking for help, clarification, or responding to other answers. I needed to use the . This definitely saves a lot of time and effort. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company can anyone please help me with this: i have written a shell script and a stored procedure which has one OUT parameter. bashrc because "the drops is already sucked" as we would say in german. – Charles Duffy You're running the script with sh, not bash. I'm not sure how sh interprets double-parens (( )), but it's certainly not the same as Bash, so it's trying to run a command called var1 and redirect the A likely cause is that the script doesn't have the execute bit set for the executing user, meaning that it's being read as a plain shell script. – +1. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Even if your default shell is bash, scripts run with sh will use a Note. To execute, use bash filename. This is due to the line VAR$i=$VAR1 , in which we are trying to substitute two variable at a time , one on RHS and Although it looks like part of a scripting language, [ is actually the name of a command, also known as test. In bash, run help test to learn more about what kind of expressions you can have between square brackets. – Keith Thompson Commented Aug 5, 2013 at 18:45 Example 1: Handling File Not Found Exception. sh, not sh getconfig. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog FYI -- test ${#g_libs[@]} == 0 isn't POSIX-compliant (POSIX test supports = for string comparisons or -eq for numeric comparisons, but not ==, not to mention the lack of arrays in POSIX), and if you're not trying to be POSIX compliant, why in the world are you using test at all rather than a math context?(( ${#g_libs[@]} == 0 )) is, after all, easier to read. sh'. (So nothing with unix / cygwin) I think it does not work from . e. I found in a gnu Makefile on Ubuntu, where /bin/sh -> bash. So here is what I got: (Separately: sh is not bash; even if sh is a symlink to the bash executable, bash runs in compatibility mode with a great many features turned off when started under the sh name; thus, use the sh tag, not the bash tag, for scripts you run with sh rather than bash; also, note that sh scriptname overrides #!/bin/bash-- if you start something with sh it's treated as a sh script . g. sh, your "window" or shell will stay open, because a new bash process is created for the script. #!/bin/bash function system_info { echo "function system_info" } $(system_info) I get a function: command not found issue. " worked! – The default shell (/bin/sh) under Ubuntu points to dash, not bash. I opened the file in Vim and I could see that just because I once edited this file on a Windows machine, it was in DOS format. But ". The original version of this article appeared on the blog written by @KevinMarquette. – This is probably not what you want, if I understand the intent of the script correctly. Bash is another sh implementation; not all features of bash are present in BusyBox sh. If you have #!/bin/bash as your shebang and run sh scriptname then the shebang is overridden by the choice of shell on the command line. com. sh, it executes in your current bash instance and exits it instead. bashrc but put the whole SHELLOPTS into you environment variables under Windows. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Single quoted strings cannot contain other single quotes, so that awk command is interpreted as a shell command instead. Hi, and welcome to the PowerShell forum! Don’t apologize for being a “noob” or “newbie” or “n00b. are empty) so the line. As the Bash Reference Manual explains, "The shell does not exit" when the -e attribute is set "if the command that fails is part of the command list immediately following a while or until keyword, part of the test in an if statement, part of any command executed in a && or || list except the command following the final && or ||, any command in a pipeline but the last, or if the Hi gusy I am trying to learn Bash and cannot seem to get this basic script to work. Any pointers, how to set these paths in my shell script? shell; scripting; tcsh; Share. source did not work in this instance, not sure why since it should be calling /bin/bash. To effectively troubleshoot the ‘bash command not found’ error, it’s essential to understand how the bash shell executes commands and how the PATH variable works. Basically a variable assignment requires the name part to be a proper name, and not one derived by evaluation. The shell grammar recognises assignment words at the lexing stage, long before parameter expansion occurs. sh, the first line of your script needs to be: #!/bin/bash Without that shebang line, your script will be interpreted by sh which doesn't understand [[in if statements. or Right click start button -> System -> Advanced system settings -> Environment Variables -> Select PATH. Place tall-pointy hat on head and turn and face the corner for 10 minutes. sh instead of sh . If you instead run . Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog The shell is interpreting your line as being in the form of a=b command arg1 arg2, which runs command with the environment variable a set to value b. file file-name # helped me in understanding that CRLF ending were present in the file. You should be doing . sh: 6: setenv: not found. Bash scripts are sensitive to line-endings, both in the script itself and in data it processes. sh: line 3: blahblah: command not found . You'll need to locate the executable shell Here is a simple example showing that using declare in a script the script will not run, while sourcing the script will: $ cat /tmp/new #! /bin/sh declare -i hello $ chmod a+rwx /tmp/new $ /tmp/new /tmp/new: 3: declare: not found $ source /tmp/new $ I wonder why directly running the script doesn't work, while sourcing it does? The if command has very specific requirements. 39" After attempting to run the As always, an assignment in the shell does not accept spaces (see: Spaces in variable assignments in shell scripts): something like var=foo bar runs the command bar with var set to foo. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Try this instead: If you leave a space before the =, the shell parses the token before it as a command or function Just make sure it doesn't run in a subshell. sh in that case) Finally the sh command invokes the dash shell, not the bash shell, so it would be wise to invoke bash scripts like bash . Make that explicit by adding the shebang line. (Not trying to be super tech-savvy, nor am I experienced with scripting). Check Command Spelling and Syntax. In this case, you just want to know if it's zero (which denotes a clean exit). sh or bash script. sh and then run it with . I'm trying to accomplish a multiple option text-based story, based on various user inputs. It I've understood the problem. There is no space allowed surrounding the = sign in shell scripting :) – David C. sh the message will start with this as expansion for $0). These examples cover a wide range of topics, from basic shell scripting concepts to more advanced techniques. If you run your script with . sh: line 4: file. To use a different shell, just invoke it; type 'bash' for example. In STR = "foo", STR is not a variable assignment. Though this seems like a fun project to test various statements, and begin scripting with the VI Editor. txt ]]; then echo "not mod"; else echo "mod"; fi and then execute the script, I get this:. Here's the script: function new_post () { if [ -z "$1" ] then Shell variables are allowed as operands; parameter expansion is performed before the expression is evaluated. If your script is executable and you are executing it like . Putting commands in variables is tricky, and in general it's easier, safer and more readable to create a function:. Can you elaborate in detail what is going in your answer (e. Make sure that's correct and that the shebang path actually invokes Bash. Another possibility is that /bin/bash is not where your bash executable is actually located. – Charles Duffy The main difference lies in which scripting language you are using. By default, there are a lot of different directories which are present in this variable, we can also add our own directory into the PATH variable which will enable us to run our script or command from anywhere in the system. Setting an environment variable before a command in Bash is not working for the second command in a pipe Hot Network Questions SSH access broken; probably due to my dislike of 'NetworkManager' P. Take care with line endings: Apparently bash is particular about the interpretation of a command line, where it discovers variable assignments before evaluating used variables. Also, var=1+1 takes the right hand side as the string 1+1, Do not put spaces around the "=" character in the final_amount line: variable assignment in shells does not support such spaces because this would conflict with things like command_name = arg2. My SHELL environment variable is also set to /bin/bash. write env in the search bar. It's possible to do something that looks similar to what you have shown, by using declare -i: That declares the variable nextcount with As the manual says: "The parameter name or symbol to be expanded may be enclosed in braces, which are optional but serve to protect the variable to be expanded from characters Here are three different ways to fix the “bash: command not found” error in Bash: 1. You have two problems in that script: Assignment to a variable does not allow for spaces around = var="val" # OK var = "val" # Not OK You are almost cetainly lookging for command substitution: var=$(something that produces output) Even though that is not the source of your errors. The below PowerShell script tries to read a file that does not exist, catches a System. – Spaces are used as delimiters when assigning variables in bash; you should remove them, otherwise your variables don't exist (i. How the Bash Shell Executes Commands The problem is the syntax is not valid POSIX shell syntax, but bash-specific and /bin/sh is not bash in the asker's case – Gert van den Berg Commented Apr 4, 2024 at 7:11 Variable assignments must not include $ and spaces around the =. Or in your case, the command is +, which is just fine, since + has no special meaning to the shell (not in this context anyway). test: $(shell . sh, then I made sure it is executable. Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company, and our products Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. I am using cygwin and Windows7, the trick was NOT to put the set -o igncr into your . tag=$1 I am seeing answers with 'se In addition to the given answers, note that running a script file with incorrect end-of-line characters could also result in 127 exit code if you use /bin/sh as your shell. This variable contains a list of directories to search for executable programs. Rankin Commented Aug 15, 2020 at 3:52 not mod but when I write a script to do the same thing: #!/bin/sh if [[ -a /path/to/file. I've written a bash script and my script is failing, when all I'm doing is assigning a variable. As you could see, the shell tried to execute a final_amount command and you got the error: final_amount: command not found If you have the correct shebang and you chmod +x scriptname, you don't need to start the script using bash scriptname - you can just use . Without the leading slash your shell is looking for bin/sh relative to your current directory, rather than where it truly resides. / prefix (see example below). I fixed this and everything started to work! That's usually not a good idea (and a source of errors as well as confusion) because referring to a variable without double quotes allows for reinterpretation (of therein contained special characters) and word splitting (if there are space characters) rather than simply only replacing the variable with its value – which is what you actually want. Otherwise, you should run your script like bash getconfig. Similarly, your call to The simple shell script with correct shebang was not able to run even after I had all pre-requisites covered. The integer argument is the return value of the script, here 2 is commonly used to indicate an error: Its End of Line(EOL) conversion issue when script is written in windows using some editors like notepad, notepad++(tested). command, as well as specify the target script with a . Overall knowing the shell variable scripting leads us to write strong and good shell scripts. /my_script) Note this sample does not include I had two errors the first one was just the full paths problem. click on the new button and add the following path: C:\WINDOWS\System32\WindowsPowerShell\v1. However, this behavior is not well known, and is not found in any other major programming modern programming language, and is not clearly mentioned in the man awk, which is usually the first point to look for information. Here you go: [[ <some test I will need to verify several times> ]] IS_WHAT_I_WANT=$? Yes. So the variable assignment should look like as follows. , ready-to-run programs) in response to commands issued by a user. /my_script. The if statement runs that command, and acts based on its The “command not found” error occurs when the Linux system cannot locate the command or file specified in the $PATH variable. ocftt lwbbl cakreev vtupn rfva aqocat favy yuxptu pto yiby pjjw oijg ivfxv theus igoqvz