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So I am not experienced in dealing with a plethora of file types, and I haven't been able to find much info on exactly what .sh files are. Here's what I'm trying to do: I'm trying to download map data sets which are arranged in tiles that can be downloaded individually: http://daymet.ornl.gov/gridded In order to download a range of tiles at once, they say to download their script, which eventually leads to daymet-nc-retrieval.sh : https://github.com/daymet/scripts/blob/master/Bash/daymet-nc-retrieval.sh So, what exactly am I supposed to do with this code? The website doesn't provide further

I'm using sh to run git commands inside a Python script. In [1]: from sh import git In [2]: s = git("log", "-1", pretty="format:%h %s") In [3]: print s 4f14a66 basic debug page This seems to work as expected. However, using this in a Django template gives [?1h= 4f14a66 basic debug page[m [K[?1l> . I tried to see what characters were in this string using repr() , to no avail: In [4]: print repr(s) 4f14a66 basic debug page It turns out commands in sh return a RunningCommand that has a .stdout attribute: In [5]: type(s) Out[5]: sh.RunningCommand In [7]: s.stdout Out[7]: '\x1b[?1h\x1b=\r4f14a66

I am having trouble launching an executable that I have created from a shell script. I would like to automate testing by running the program many times with different command line options to verify it is working. When I type echo $SHELL , /bin/sh is displayed. The following is my shell script: #!/bin/sh clear echo "Running first test." ./myProgram exit 0 When I run the script ( sh myScript.sh ), with myProgram in the same directory, I see the following output: Running first test. : not foundsh: line 4: When executing the program ./myProgram , it runs as expected with no command line options. I

I have a script, that I need to run after committing to a project under git revision control. Therefore I created a post-commit hook in my projects .git directory in the subdirectory /hooks, named it 'post-commit' and gave it the following contents: #!/bin/sh # I am a post-commit hook /usr/local/bin/my_script & my_script is executable and runs fine in /bin/sh. In fact it has a runtime of several seconds, so I want it to be backgrounded and detached from the current shell. That's why I put the trailing '&' to my hook. The problem now is, that the '&' seems to be ignored. When I commit using

This question already has an answer here: Why do shell script comparisons often use x$VAR = xyes? 7 answers What is the portable and canonical way to test if variable is empty/undefined in a shell script? It should work in all sh-like shells. What I do now is something like: if [ -z "$var" ] ; then ... and for reverse, doing something when variable is not empty/undefined: if [ -n "$var" ] ; then ... And while these work for the scripts I write now, I'd like to know a way, that will work in any reasonably compatible sh -like shell , even on some more obscure environment than a Linux PC with GNU

I have a shell script which uses process substitution The script is: #!/bin/bash while read line do echo "$line" done < <( grep "^abcd$" file.txt ) When I run the script using sh file.sh I get the following output $sh file.sh file.sh: line 5: syntax error near unexpected token `<' file.sh: line 5: `done < <( grep "^abcd$" file.txt )' When I run the script using bash file.sh , the script works. Interestingly, sh is a soft-link mapped to /bin/bash . $ which bash /bin/bash $ which sh /usr/bin/sh $ ls -l /usr/bin/sh lrwxrwxrwx 1 root root 9 Jul 23 2012 /usr/bin/sh -> /bin/bash $ ls -l /bin/bash