You can get a list of functions in your script by using the grep command on your own script. In order for this approach to work, you will need to structure your functions a certain way so grep can find them. Here is a sample: $ cat my.sh #!/bin/sh function func1() # Short description { … Read more
[*] Always use “$x”, at least at first. The cases where this is correct far outnumber the cases where it may be wrong. Parameter expansions are subject to both word-splitting and pathname expansion, neither of which you usually want. Quoting the expansion preserves the literal content of the parameter. Compare $ x=”foo * bar” $ … Read more
PATH works only with directories, not with single files From the POSIX standard (emphasis mine) PATH This variable shall represent the sequence of path prefixes that certain functions and utilities apply in searching for an executable file known only by a filename. The prefixes shall be separated by a colon ( ‘:’ ). […] The … Read more
To change tag‘s value to 2 and tag1‘s value to 3, using XMLStarlet: xmlstarlet ed \ -u ‘/root/tag’ -v 2 \ -u ‘/root/tag1’ -v 3 \ <old.xml >new.xml Using your sample input: xmlstarlet ed \ -u ‘/root/tag’ -v 2 \ -u ‘/root/tag1’ -v 3 \ <<<‘<root><tag>1</tag><tag1>2</tag1></root>’ …emits as output: <?xml version=”1.0″?> <root> <tag>2</tag> <tag1>3</tag1> </root>
On UNIX-like systems, you should always start scripts with a shebang line. The system call execve (which is responsible for starting programs) relies on an executable having either an executable header or a shebang line. From FreeBSD’s execve manual page: The execve() system call transforms the calling process into a new process. The new process … Read more
You should use the = operator for string comparison: Sourcesystem=”ABC” if [ “$Sourcesystem” = “XYZ” ]; then echo “Sourcesystem Matched” else echo “Sourcesystem is NOT Matched $Sourcesystem” fi; man test says that you use -z to match for empty strings.
The line-continuation will fail if you have whitespace (spaces or tab characters¹) after the backslash and before the newline. With no such whitespace, your example works fine for me: $ cat test.sh if ! fab –fabfile=.deploy/fabfile.py \ –forward-agent \ –disable-known-hosts deploy:$target; then echo failed else echo succeeded fi $ alias fab=true; . ./test.sh succeeded $ … Read more
I know this is and old question, but i was faced with the same problem recently and none of the answers worked for me: Couldn’t find an old Foxit Reader version As @pilkch said 2Printer adds a report page Adobe Reader opens a gui After searching a little more i found this: http://www.columbia.edu/~em36/pdftoprinter.html. It’s a … Read more
From documentation of set -e: When this option is on, if a simple command fails for any of the reasons listed in Consequences of Shell Errors or returns an exit status value > 0, and is not part of the compound list following a while, until, or if keyword, and is not a part of … Read more
Usage of the $ like ${HOME} gives the value of HOME. Usage of the $ like $(echo foo) means run whatever is inside the parentheses in a subshell and return that as the value. In my example, you would get foo since echo will write foo to standard out