* re: for command
@ Tyler Spivey
` Saqib Shaikh
0 siblings, 1 reply; 2+ messages in thread
From: Tyler Spivey @ UTC (permalink / raw)
To: speakup
an example: to tail all the files in the current directory,
you can do tail *, also:
for i in *; do tail $i;done
you can do (in bash):
help for
and it gives you:
for: for NAME [in WORDS ... ;] do COMMANDS; done
The `for' loop executes a sequence of commands for each member in a
list of items. If `in WORDS ...;' is not present, then `in "$@"' is
assumed. For each element in WORDS, NAME is set to that element, and
the COMMANDS are executed.
so,
for i in *.txt;do cat "testing" >>$i;done
would append "Testing" to the files in the current directory ending with .txt.
hope this helps.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: for command
for command Tyler Spivey
@ ` Saqib Shaikh
0 siblings, 0 replies; 2+ messages in thread
From: Saqib Shaikh @ UTC (permalink / raw)
To: speakup
thanks very much for the help.
obviously reading through the help i missed the bit about using a $ - maybe
because i had punctuation too low. thanks once again.
saqib
----- Original Message -----
From: "Tyler Spivey" <tspivey8@home.com>
To: <speakup@braille.uwo.ca>
Sent: Sunday, December 23, 2001 10:24 PM
Subject: re: for command
> an example: to tail all the files in the current directory,
> you can do tail *, also:
> for i in *; do tail $i;done
> you can do (in bash):
> help for
> and it gives you:
> for: for NAME [in WORDS ... ;] do COMMANDS; done
> The `for' loop executes a sequence of commands for each member in a
> list of items. If `in WORDS ...;' is not present, then `in "$@"' is
> assumed. For each element in WORDS, NAME is set to that element, and
> the COMMANDS are executed.
> so,
> for i in *.txt;do cat "testing" >>$i;done
> would append "Testing" to the files in the current directory ending with
.txt.
> hope this helps.
>
> _______________________________________________
> Speakup mailing list
> Speakup@braille.uwo.ca
> http://speech.braille.uwo.ca/mailman/listinfo/speakup
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