by vict.. » Fri, 23 Jun 2000 04:00:00
But that doesn't work. Why??
Many thanks...
Sent via Deja.com http://www.deja.com/
Before you buy.
by Eric Amic » Fri, 23 Jun 2000 04:00:00
if [[ "$var" = #* ]]; then ...
--
Eric Amick
Columbia, MD
by Gus Schlachte » Fri, 23 Jun 2000 04:00:00
> Because you've got the wrong syntax. It should be
> if [[ "$var" = #* ]]; then ...
if expr "$var" : "#" > /dev/null; then ... fi
Or this:
if [[ -z ${var%%#*} ]]; then ... fi
Gus
--------------------------------------------------
--------------------------------------------------
by Eric Amic » Fri, 23 Jun 2000 04:00:00
>> Because you've got the wrong syntax. It should be
>> if [[ "$var" = #* ]]; then ...
> Hmmm, that doesn't seem to work either.
if [[ "$var" = \#* ]]; then ...
*will* work. (I tried this one to be sure.)
--
Eric Amick
Columbia, MD
by Ken Pizzi » Sat, 24 Jun 2000 04:00:00
Because "==" in the test (aka "[") command is a stringQuote:>But that doesn't work. Why??
--Ken Pizzini
by Dan Merc » Sat, 24 Jun 2000 04:00:00
>>> Because you've got the wrong syntax. It should be
>>> if [[ "$var" = #* ]]; then ...
>> Hmmm, that doesn't seem to work either.
> Yeah, I forgot that # introduces comments. On the other hand,
> if [[ "$var" = \#* ]]; then ...
> *will* work. (I tried this one to be sure.)
if [[ $var = \#* ]]; then ...
works for all values of var, as does
if [[ -f $var ]]
Quotes are reguired for some data on the RHS.
--
Dan Mercer
Opinions expressed herein are my own and may not represent those of my employer.
1. Command to test a variable or string for patterns?
Hi, I'm writing my first shell script (bash shell) and I can't find a
command to do what I want.... The script succeeds at its purpose,
which is to rename a bunch of files at once, replacing an arbitrary
string with another arbitrary string.
The problem is I want to make it skip backup (~) files and I can't
find a way to test the variable $files to see if it contains the
tilde. Is there a command that does such a thing? I can only find
commands like grep to search entire files, not variables or strings
.. And if this hypothetical command finds a tilde, how do I make it
then prevent mv from executing for that filename?
My script:
#!/bin/bash
#A script to try out renaming a batch of files.
#PW's first-ever shell script!
echo "The value of the variable 1 is currently: $1"
echo "The value of the variable 2 is currently: $2"
echo "Replacing $1 with $2 in all filenames"
echo -n "in the directory " ; pwd
for files in *$1* ; do
mv -i `(echo -n $files " " ; echo $files | sed s/$1/$2/)`
# The first arg to mv is thus $files ; the second is thus
# $files piped through sed to replace $1 with $2
done
==============================================================
Paul Winkler --- music & sound --- zarmzarm at hotmail dot com
a member of
ARMS --- an ongoing pop music experiment --- our first album,
URBAN SUNDIAL is now available.....on CD, vinyl, and cassette
from Label 12 13.........contact: sonic113 at juno dot com
Also -- improvised & electronic music releases are coming real
soon, dirt cheap from plan B cassette works and label 12 13...
==============================================================
2. What means the link error "shdr table truncated"
3. test test test test test test test
4. How do I backup open files?
5. ksh conditional (string match pattern)
6. Why a 301 Moved Permanently ?
7. VI editor, replacement string pattern
9. Matching a pattern in a file and inserting variable string above the line matched?
11. How can I pattern-match a given string in ksh?
12. substitute string for pattern in KSH 88
13. Append string to each line if it matches a pattern