Without the aid of the escape mechanism, how to put a raw string into a variable?
Hi guys and gals...
I have been racking my brains with this one and I can't find anything about it...
Consider the code and the results below:
Results on OSX 10.14.x:
As you can see saving a rawstring to disk and retrieving it again works but trying to force a rawstring without the escape mechanism fails catastrophically.
This is one of the USEFUL uses of 'cat' as it works admirably in this case but it requires I/O to do so...
I need to avoid the use of the escape mechanism inside the failing condition in case I want to __edit__ said rawstring inside any code.
I would like to know what is different about putting a rawstring into a variable using 'cat' and attempting to do so using hard coding.
Dear all,
I want below data to make it in column format.so i will see the data like this
cdrID teleServiceCode chargedPartyNumber ... ... ... ...
"egmailcom0w10ggzx00" 'sMS (5)' "716323770"
"m17ifi5z30w0z6o7200" 'sMS (5)' ... (7 Replies)
Hello all,
I have a string var which contains formatting characters at the end, it is a string with EScape sequences at the end of it.
How can I remove them so that I only keep the 'real' text?
I tried :
var1=${var1%%\033[0m}
does not seem to do the job ....
Please help
Thanks (2 Replies)
I want it to ouput "abcd", but it dosen't.
1 #include<stdio.h>
2 int main()
3 {
4 printf("a\x62cd");
5 }
6
gcc alarm.c -o alarm
alarm.c: In function 'main':
alarm.c:4:9: warning: hex escape sequence out of range
It seems that the complier joint "cd" as part of... (8 Replies)
I tried to parse data from switch configuration files
vlan 1727 name SQ5506-15 by port
tagged ethe 8/1 to 8/2
untagged ethe 1/13
!
vlan 2105 name SQ5620-7007(BR2) by port
tagged ethe 8/1 to 8/2
untagged ethe 1/17
!
interface ethernet 1/13
port-name SQ5506-15.nic0
rate-limit... (2 Replies)
How to store escape character in the variable.
Var=abc,def,ghi,jkl
echo ${Var} | sed -e "s/,/|\\\\./g;s/^/\\\\./g"
\.abc|\.def|\.ghi|\.hjk
Var1=`echo ${Var} | sed -e "s/,/|\\\./g;s/^/\\\./g"`
Actual:
-------
echo $Var1
.abc|.def|.ghi|.jkl
Expected:
---------
echo $Var1... (4 Replies)
Hi,
I am trying to read an Oracle listener log file line by line and need to separate the lines into several fields. The field delimiter for the line happens to be an asterisk.
I have the script below to start with but when running it, the echo command is globbing it to include other... (13 Replies)
Hello,
Below script works fine when I manually enter required information for each file. When it comes to shell in auto mode, it gives various errors.
I am under ubuntu 14.04 / trusty.
manual_run.sh:
#!/bin/bash
/usr/bin/ffmpeg -start_at_zero -copyts -i nicki.mp4 -c:v mpeg2video \
-b:v 500k... (3 Replies)
Debian 9 64x - LXDE
How can i disable escape sequences in a variable?
#!/bin/bash
#mainscript
. "./links.bash"
echo "$red_start This text should be red $color_end"#!/bin/bash
#links.bash
#colors
red_start="\eOutput that i get:
\e
Output expected:
This text should be... (5 Replies)
Discussion started by: int3g3r
5 Replies
LEARN ABOUT PHP
systemd-escape
SYSTEMD-ESCAPE(1) systemd-escape SYSTEMD-ESCAPE(1)NAME
systemd-escape - Escape strings for usage in systemd unit names
SYNOPSIS
systemd-escape [OPTIONS...] [STRING...]
DESCRIPTION
systemd-escape may be used to escape strings for inclusion in systemd unit names. The command may be used to escape and to undo escaping of
strings.
The command takes any number of strings on the command line, and will process them individually, one after another. It will output them
separated by spaces to stdout.
By default, this command will escape the strings passed, unless --unescape is passed which results in the inverse operation being applied.
If --mangle is given, a special mode of escaping is applied instead, which assumes the string is already escaped but will escape everything
that appears obviously non-escaped.
For details on the escaping and unescaping algorithms see the relevant section in systemd.unit(5).
OPTIONS
The following options are understood:
--suffix=
Appends the specified unit type suffix to the escaped string. Takes one of the unit types supported by systemd, such as "service" or
"mount". May not be used in conjunction with --template=, --unescape or --mangle.
--template=
Inserts the escaped strings in a unit name template. Takes a unit name template such as foobar@.service. May not be used in conjunction
with --suffix=, --unescape or --mangle.
--path, -p
When escaping or unescaping a string, assume it refers to a file system path. This eliminates leading, trailing or duplicate "/"
characters and rejects "." and ".." path components. This is particularly useful for generating strings suitable for unescaping with
the "%f" specifier in unit files, see systemd.unit(5).
--unescape
Instead of escaping the specified strings, undo the escaping, reversing the operation. May not be used in conjunction with --suffix=,
--template= or --mangle.
--mangle
Like --escape, but only escape characters that are obviously not escaped yet, and possibly automatically append an appropriate unit
type suffix to the string. May not be used in conjunction with --suffix=, --template= or --unescape.
-h, --help
Print a short help text and exit.
--version
Print a short version string and exit.
EXAMPLES
To escape a single string:
$ systemd-escape 'Hallochen, Meister'
Hallxc3xb6chenx2cx20Meister
To undo escaping on a single string:
$ systemd-escape -u 'Hallxc3xb6chenx2cx20Meister'
Hallochen, Meister
To generate the mount unit for a path:
$ systemd-escape -p --suffix=mount "/tmp//waldi/foobar/"
tmp-waldi-foobar.mount
To generate instance names of three strings:
$ systemd-escape --template=systemd-nspawn@.service 'My Container 1' 'containerb' 'container/III'
systemd-nspawn@Myx20Containerx201.service systemd-nspawn@containerb.service systemd-nspawn@container-III.service
EXIT STATUS
On success, 0 is returned, a non-zero failure code otherwise.
SEE ALSO systemd(1), systemd.unit(5), systemctl(1)systemd 237SYSTEMD-ESCAPE(1)