Accrding to: http://www.vias.org/linux-knowhow/bbg_sect_08_02_01.html : -r If this option is given, backslash does not act as an escape character. The backslash is considered to be part of the line. In particular, a backslash-newline pair may not be used as a line continuation. It works on my machine. $ echo ‘\&|’ | while read -r in; do … Read more
You should use shuf command =) cat file1 file2 | shuf Or with Perl : cat file1 file2 | perl -MList::Util=shuffle -wne ‘print shuffle <>;’
Here are my 2 cents on this and it represents my personal opinion as well as understanding on the topic. Using aliases with functions is to some extent a personal preference of developers. I will add some differences between the two approaches, which may also account for personal preferences of using aliases vs functions There … Read more
Great question. I use a pattern like this for most of my scripts: #!/bin/bash main() { foo bar baz } foo() { } bar() { } baz() { } main “$@” You can read the code from top to bottom, but it doesn’t actually start executing until the last line. By passing “$@” to main() … Read more
The simple solution: output=$(complex_command) status=$? if (( status == 0 )); then : stuff with “$output” fi : more code if (( status == 0 )); then : stuff with “$output” fi Or more eleganter-ish do_complex_command () { # side effects: global variables # store the output in $g_output and the status in $g_status g_output=$( … 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>
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
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
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