/bin/bash: command not found Google Colab - google-colaboratory

I am trying to run a ready project on Google Colab.. when I run a shell it gives the following error:
/bin/bash: example.sh: command not found
How I can solve this problem?

You have two options to run shell script in google-colab:
1) Execute a single script with !:
!sh example.sh
!echo "I am your code !!!"
2) Execute entire code-block as shell script with %%shell:
%%shell
sh example.sh
echo "You should add %% "
Note: In the second approach, entire block interpreted as shell script. You do not need ! at beginning of every script.

Related

how to run compound script statements from cmake?

I have a complex/compound command that I want to execute as patch command during execution of my ExternProject_Add using this macro
macro(SET_PATCH_CMD arg)
message(STATUS "Patch command : ${arg};${ARGN}")
set(${PROJECT_NAME}_patch_cmd ${arg};${ARGN})
endmacro(SET_PATCH_CMD)
I dont remeber or am not sure why I added a ; between ${arg} and ${ARGN}, but patch commands like
mkdir -p <SOURCE_DIR>/install
are working as expected in my cmake project.
When I set a simple command like
SET(PATCH_CMD <SOURCE_DIR>/scripts/my_schript.sh)
patch command executes as expected, but the moment I start adding arguments to script with spaces in between
SET(PATCH_CMD <SOURCE_DIR>/scripts/my_schript.sh arg1 arg2 arg3)
SET_PATCH_CMD(${PATCH_CMD})
I get Command failed: No such file or directory
clearly spaces in my command are messing up the way cmake runs the shell script/command. Any help on making it work is appreciated.

Executing BTEQ file via shell script (BTEQ: Command not found error)

I'm trying to set up an environment to execute BTEQ script via shell script in the local machine. On running the shell script I'm getting an error of BTEQ: Command not found. Not sure what I'm doing wrong.
I've created a separate .tdlogon file which contains .LOGON credentials. BTEQ script is a simple create table statement that I'm trying to execute.
My .tdlogon file is something like
.logon servername/uname,pwd
I'm calling the file like this
#!/bin/bash
server_path=/Users/xyz/xyz
log_path=/Users/xyz/xyz/logs
echo -e 'Starting the script'>> ${log_path}/test_log.log
cat ${server_path}/.tdlogon ${server_path}/code/temp_query.btq | bteq >> ${log_path}/test_log.log 2>&1
if [ ${rtn_code} -ne 0 ] ; then
echo -e 'Script completed successfully'>> ${log_path}/test_log.log
exit 0
else
echo -e 'Error in the script'>> ${log_path}/test_log.log
exit 1
fi
On executing the above code I'm getting below error in the log file
line 10: bteq: command not found
Appreciate any guidance related to this.
Seems like your Linux is not pointing to the bteq path. Update the bteq path:
export PATH=/usr/bin/bteq:$PATH
And, in some cases, there will be bteq32 instead of bteq in that case set path as:
export PATH=/usr/bin/bteq32:$PATH

Running .sh scripts in Git Bash

I'm on a Windows machine using Git 2.7.2.windows.1 with MinGW 64.
I have a script in C:/path/to/scripts/myScript.sh.
How do I execute this script from my Git Bash instance?
It was possible to add it to the .bashrc file and then just execute the entire bashrc file.
But I want to add the script to a separate file and execute it from there.
Let's say you have a script script.sh. To run it (using Git Bash), you do the following: [a] Add a "sh-bang" line on the first line (e.g. #!/bin/bash) and then [b]:
# Use ./ (or any valid dir spec):
./script.sh
Note: chmod +x does nothing to a script's executability on Git Bash. It won't hurt to run it, but it won't accomplish anything either.
#!/usr/bin/env sh
this is how git bash knows a file is executable. chmod a+x does nothing in gitbash. (Note: any "she-bang" will work, e.g. #!/bin/bash, etc.)
If you wish to execute a script file from the git bash prompt on Windows, just precede the script file with sh
sh my_awesome_script.sh
if you are on Linux or ubuntu write ./file_name.sh
and you are on windows just write sh before file name like that sh file_name.sh
For Linux -> ./filename.sh
For Windows -> sh file_name.sh
If your running export command in your bash script the above-given solution may not export anything even if it will run the script. As an alternative for that, you can run your script using
. script.sh
Now if you try to echo your var it will be shown. Check my the result on my git bash
(coffeeapp) user (master *) capstone
$ . setup.sh
done
(coffeeapp) user (master *) capstone
$ echo $ALGORITHMS
[RS256]
(coffeeapp) user (master *) capstone
$
Check more detail in this question
I had a similar problem, but I was getting an error message
cannot execute binary file
I discovered that the filename contained non-ASCII characters. When those were fixed, the script ran fine with ./script.sh.
Once you're in the directory, just run it as ./myScript.sh
If by any chance you've changed the default open for .sh files to a text editor like I had, you can just "bash .\yourscript.sh", provided you have git bash installed and in path.
I was having two .sh scripts to start and stop the digital ocean servers that I wanted to run from the Windows 10. What I did is:
downloaded "Git for Windows" (from https://git-scm.com/download/win).
installed Git
to execute the .sh script just double-clicked the script file it started the execution of the script.
Now to run the script each time I just double-click the script
#!/bin/bash at the top of the file automatically makes the .sh file executable.
I agree the chmod does not do anything but the above line solves the problem.
you can either give the entire path in gitbash to execute it or add it in the PATH variable
export PATH=$PATH:/path/to/the/script
then you an run it from anywhere

Can I fail a build based on the outcome of a SSH Task?

I was wondering if I could use bamboo's SSH task to run a script (this kicks off a small java message injector).
Then grep the logs for ERRORS. If any ERROR is present I would like to fail the build.
Something like this:
Is this a Bash question or is it really about Bamboo? Here is the Bash problem answer:
If you run
[[ ! $(grep ERROR /a/directory/log/*) ]]
the script will exit with an error if it finds the word "ERROR" anywhere in the files.
Bamboo should detect the task execution as failed.
(Note that if Bash is not the default shell on your target system you may need a #!/bin/bash on top of the script file.)

Unable to run a postgresql script from bash

I am learning the shell language. I have creating a shell script whose function is to login into the DB and run a .sql file. Following are the contents of the script -
#!/bin/bash
set -x
echo "Login to postgres user for autoqa_rpt_production"
$DB_PATH -U $POSTGRESS_USER $Auto_rpt_production$TARGET_DB -p $TARGET_PORT
echo "Running SQL Dump - auto_qa_db_sync"
\\i auto_qa_db_sync.sql
After running the above script, I get the following error
./autoqa_script.sh: 39: ./autoqa_script.sh: /i: not found
Following one article, I tried reversing the slash but it didn't worked.
I don't understand why this is happening. Because when I try manually running the sql file, it works properly. Can anyone help?
#!/bin/bash
set -x
echo "Login to postgres user for autoqa_rpt_production and run script"
$DB_PATH -U $POSTGRESS_USER $Auto_rpt_production$TARGET_DB -p $TARGET_PORT -f auto_qa_db_sync.sql
The lines you put in a shell script are (moreless, let's say so for now) equivalent to what you would put right to the Bash prompt (the one ending with '$' or '#' if you're a root). When you execute a script (a list of commands), one command will be run after the previous terminates.
What you wanted to do is to run the client and issue a "\i ./autoqa_script.sh" comand in it.
What you did was to run the client, and after the client terminated, issue that command in Bash.
You should read about Bash pipelines - these are the way to run programs and input text inside them. Following your original idea to solving the problem, you'd write something like:
echo '\i auto_qa_db_sync.sql' | $DB_PATH -U $POSTGRESS_USER $Auto_rpt_production$TARGET_DB -p $TARGET_PORT
Hope that helps to understand.