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Delete first character from a string stored in a variable

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# 1  
Old 06-18-2010
Delete first character from a string stored in a variable
Hallo!

Example.

Code:
#!/bin/bash

BACKUP_DIR=/home/userx/backups/evolution

echo $BACKUP_DIR

# delete the first character from the string 

BACKUP_DIR=$(echo $BACKUP_DIR | cut -c 2-)

echo $BACKUP_DIR

Quote:
/home/userx/backups/evolution
home/userx/backups/evolution
It works. It does want I want, delete the first character from string in the variable.

My questions, could this be done in another way (more "sophisticated")?

Thanks, for feedback!
# 2  
Old 06-18-2010
Yes:

Code:
${BACKUP_DIR#?}

# 3  
Old 06-18-2010
Try using SED
Code:
echo $BACKUP_DIR |sed 's/^.//'

# 4  
Old 06-18-2010
Code:
DIR=${DIR:1:${#DIR}}

# 5  
Old 06-18-2010
Hi posix, imho that is not an improvement to the OP's solution with cut. Radoulov's solution is elegant in that it does not need a pipe or an external program, nor a subshell plus it works in any POSIX compliant shell. I don't think it can be beat...
# 6  
Old 06-18-2010
@Scrutinizer- You are right code written by Scrutinizer is much more improvement one than me, i really appreciate it. Also i learnt a lot more things form this forum.
Thanks a lot to all moderator, author and staff.
# 7  
Old 06-18-2010
BIG THANKS, TO ALL FOR HELP!

Lets say "radoulov" 10 points! OK! Smilie
Last edited by linuxinho; 06-18-2010 at 07:52 AM..
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