All Questions
15
questions
-1
votes
1
answer
42
views
I can't grep some inputrc string
bind -p |grep -E "\\e.\":" work
but
bind -p |grep -E "\\e\\C-.\":" don't work
I tried a lot of combination
- 11
0
votes
0
answers
59
views
Why isn't passed quoted $@ a single argument? [duplicate]
Why isn't passed quoted $@ a single argument?
f2()
{
echo "f2: $1"
}
f1()
{
local x=("$@")
f2 "${x[@]}"
}
f1 x y
Invocation:
$ bash t537.sh
f2: ...
- 619
3
votes
1
answer
280
views
Recursively renaming apostrophs ' in filenames (Bash)
Need to remove apostrophes from files. I have tried several approaches, also from Stackexchange.
I am on a Synology NAS, so I don't have Python, or Perl and furthermore I have to exclude certain ...
0
votes
1
answer
382
views
case-substring function and quoting
i use a simple function in a script in order to ckeck if a string contains a particular substring:
#!/bin/bash
#
subs() {
case $2 in
*$1*)
return 0 ;;
*)
...
- 3
1
vote
1
answer
161
views
bash 'pattern substitution' fails only in some conditions
Why does/would the following printf statement behave differently based upon ...? (GNU bash, version 4.4.18(1)-release (x86_64-pc-linux-gnu))
printf "%s : %s : %s\n" $TERM ${TERM//[^[:alnum:]]/_} ${...
- 3,098
1
vote
1
answer
610
views
Escaping bash variables before storing them in an apache hive database
I'm running a script file sqoop_import_ATM.sh and would like to store the logs in a SQL database.
First thing I did was to direct the logs into my own variable:
OUTPUT="$(/home/me/...
- 111
4
votes
4
answers
18k
views
Bash converting path names for sed so they escape [duplicate]
I'm having a problem with a script. It is meant to change a value in a file called %DIR% so that it becomes a path name. The problem is the slashes in the directory name upset sed, so I get weird ...
- 1,990
6
votes
2
answers
20k
views
How to escape single or double quotes when passing a variable to bash script?
Let's say I have a script which echoes $1
#!/bin/bash
echo $1
It's called test.sh.
Then I call /bin/test.sh 'test'. The output is test. But this doesn't work:
/bin/test.sh 'te'st'
There's a syntax ...
- 61
1
vote
1
answer
5k
views
Using sed to replace a string with special chars with another string with special characters
I'm trying to automate switching out a bash prompt for another in .bashrc
Original String:
PS1='${debian_chroot:+($debian_chroot)}\[\033[01;31m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
...
- 11
5
votes
2
answers
7k
views
Splitting the working directory in a bash script
If I do:
IFS="/" read -ra PARTS
And type in a path manually, it creates the array "PARTS" as hoped, however:
IFS="/" read -ra PARTS <<< $(pwd)
creates an array with a single element, with ...
- 214
3
votes
2
answers
7k
views
Why quotes are retained in string variables when surrounded by single quotes?
I needed to retain the double quotes around a string variable defined in bash in order to be able to pass it to a dialect of the Scheme programming language. My question is why are the double quotes ...
- 679
10
votes
1
answer
869
views
Test -n gives unexpected result
I understand test -n <expression> to return false if the expression evaluates to a string length of greater than 0. Why then does the following happen?
Macbook:~ echo ${#undeclared_variable}
0
...
- 7,640
6
votes
2
answers
2k
views
how do I set quotes around a variable so that the programs sees them as quote marks
I am trying to get quotes around a variable to make is just like I typed it in the terminal
to get this script to work. it shows " quotes around the varibale "
but still does not see it as quotes, as ...
- 526
2
votes
4
answers
10k
views
Appending a string containing escape character with sed
Currently I use:
sed -i -e "5a\\
${text}" $filename
to append something to a certain line, where the variable text
contains a string such as "\epsilon".
When using
echo -E $text
the string is ...
- 123
2
votes
3
answers
393
views
How to pass lines from a file to a bash script, so that each line remains undivided, even if there are spaces?
Given:
$ cat lines.txt
a/b
'c/d e/f'
$ cat 1.sh
#!/bin/sh
./2.sh `cat lines.txt`
$ cat 2.sh
#!/bin/sh
echo p1=$1
echo p2=$2
echo p3=$3
$ ./1.sh
p1=a/b
p2='c/d
p3=e/f'
How do I change lines.txt or ...
- 379