[ale] Stupid Bash Question

[Geoffrey Myers]

I don't think nested ' will even work...

Sent from my iPhone

On Mar 7, 2012, at 4:15 PM, Michael Campbell <michael.campbell at gmail.com> wrote:

> One advantage of $() over `` is that you get matching opposing pairs of parens and nested commands are a bit easier to  parse.
> 
> echo $(foo bar $(baz blah) and then bleh)
> 
> as opposed to 
> 
> echo `foo bar `baz blah` and then bleh`    
> 
> 
> For me another win is that I generally run shells inside emacs buffers so I can make use of the paren-matching feature from within emacs to help out.
> 
> 
> On Wed, Mar 7, 2012 at 11:25 AM, Benjie <benjie.godfrey at gmail.com> wrote:
> It looks like you missed placing a single quote after the 'echo `hostname` command.  That would prevent awk from interpreting its print command.
> 
> On Wed, Mar 7, 2012 at 11:07 AM, Brandon Colbert <colbert.brandon at gmail.com> wrote:
> I am trying figure out what the heck is wrong with awk here.
> 
> for i in $(seq 1 1); do ssh 127.0.0.$i 'echo `hostname`; if [ `free -m | grep -i swap | awk '{print $3}'` > 1000 ]; then sudo echo reclaim; else echo hey; fi'; done
> 
> The command works, but I get an error about awk: Any suggestions?
> 
> deblapatl01
> awk: cmd. line:1: {print
> awk: cmd. line:1:       ^ unexpected newline or end of string
> hey
> 
> 
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