sh Archives - Page 3 of 4

How to execute mongo commands through shell scripts?

I want to execute mongo commands in shell script, e.g. in a script test.sh: #!/bin/sh mongo myDbName db.mycollection.findOne() show collections When I execute ...

May 5, 2022
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How can I split a shell command over multiple lines when using an IF statement?

How can I split a command over multiple lines in the shell, when the command is part of an if statement? This works: ...

May 4, 2022
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How to get a password from a shell script without echoing

I have a script that automates a process that needs access to a password protected system. The system is accessed via a command-line ...

May 1, 2022
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How to do a logical OR operation for integer comparison in shell scripting?

I am trying to do a simple condition check, but it doesn’t seem to work. If $# is equal to 0 or is ...

April 30, 2022
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“echo -n” prints “-n”

I have a problem with echo in my script: echo -n "Some string..." prints -n Some string... and moves to the next line. ...

April 29, 2022
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How to read a file into a variable in shell?

I want to read a file and save it in variable, but I need to keep the variable and not just print out ...

April 29, 2022
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Command not found error in Bash variable assignment

I have this script called test.sh: #!/bin/bash STR = "Hello World" echo $STR when I run sh test.sh I get this: test.sh: line ...

April 28, 2022
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What does set -e mean in a bash script?

I’m studying the content of this preinst file that the script executes before that package is unpacked from its Debian archive (.deb) file. ...

April 16, 2022
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How to echo shell commands as they are executed

In a shell script, how do I echo all shell commands called and expand any variable names? For example, given the following line: ...

April 14, 2022
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How can I declare and use Boolean variables in a shell script?

I tried to declare a Boolean variable in a shell script using the following syntax: variable=$false variable=$true Is this correct? Also, if I ...

April 13, 2022
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