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 … Read more
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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: … Read more
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 … Read more
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 … Read more
“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. … Read more
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 … Read more
Command not found error in Bash variable assignment
I have this script called test.sh: #!/bin/bash STR = “Hello World” echo $STR when I run sh test.sh I get this: test.sh: line … Read more
What does set -e mean in a bash script?
I’m studying the content of this preinst file that the script executes before that package is unpacked from its Debian archive (.deb) file. … Read more
How to echo shell commands as they are executed
In a shell script, how do I echo all shell commands called and expand any variable names? For example, given the following line: … Read more
How can I declare and use Boolean variables in a shell script?
I tried to declare a Boolean variable in a shell script using the following syntax: variable=$false variable=$true Is this correct? Also, if I … Read more