All Questions
Tagged with shell-script bash
6,919 questions
-4
votes
2
answers
87
views
Linux kill command returns "No such process"
In the below shell script I have list of process IDs which need to be killed. When killing a process I am getting kill: 1234567: no such process error even after checking if the process id existence ...
- 207
-3
votes
3
answers
76
views
How to pass an array as an argument to a function
In the below shell script I am passing an integer and a string array to a print function which should print each parameter separately, but I'm not able to. I don't want make a reference of passed ...
- 207
-1
votes
3
answers
100
views
Generate hashes automatically and continuously with a script and stop by pressing a key?
I need a part for a script in bash where hashes are generated automaticaly and continuously and when I press a key the generation stops and the last hash at which I stopped is displayed.
I've cobbled ...
- 67
0
votes
1
answer
61
views
How to pass an argument by reference to a function in KornShell (PDKSH 5.2.14)
In Bash I can use
local -n ref_name=$1
to pass an argument to a function by reference, but the same syntax in ksh throws an error saying
typeset: -n: unknown option
I tried nameref ref_name=$1 ...
- 207
1
vote
2
answers
179
views
Check if a given function name exists in a sourced shell script file
In Bash I can use $(type -t function_name) = "function" to check if the function by name function_name exists or not in a sourced file which is sourced using source file_name command. I'm ...
- 207
1
vote
1
answer
66
views
List all the directories residing in a directory path using KornShell
I have the below shell script which works fine in Bash to list all the directories residing inside a given directory path and add them to an array. But the same script code doesn't work in KornShell.
...
- 207
4
votes
4
answers
743
views
How to check if a path exists from a string with case insensitive?
Hello i try to check if a path exists with a if statetment in a bash script from a string. I try the follow but nothing seems to handle this.
The path is /home/orhan/Blog/Mai1
path='/home/orhan/blog/...
- 67
2
votes
2
answers
368
views
Can I execute multiple case blocks if the pattern matches?
I want to know if there is another alternative in Bash to execute multiple blocks when the pattern matches.
I don’t want to use another command, if statements, or two or more separate case blocks or ...
- 8,609
3
votes
3
answers
466
views
How to wait for background commands that were executed within a subshell?
Given this code:
#!/bin/bash
set -euo pipefail
function someFn() {
local input_string="$1"
echo "$input_string start"
sleep 3
echo "$input_string end"
}
function ...
- 16.6k
9
votes
7
answers
969
views
Check if multiple files exist on a remote server
I am writing a script that locates a special type of file on my system and i want to check if those files are also present on a remote machine.
So to test a single file I use:
ssh -T user@host [[ -f /...
- 193
-2
votes
2
answers
69
views
HISTTIMEFORMAT not working as desired in RHEL 8 bash 4.4.20
so trying to capture history with date and readable timestamps AND the command should appear on same line. following is failing:
Bash ver is: GNU bash, version 4.4.20(1)-release (x86_64-redhat-linux-...
- 256
1
vote
0
answers
51
views
How to send an email with an attachment, but so that the attachment is not saved on the mail server
I send emails from the terminal with mutt -s "This is Subject" -a a.txt -- [email protected] < test.txt. The a.txt attachments can be large, how can I avoid filling up the mail server?
...
- 33
2
votes
1
answer
108
views
Sending emails from the Linux terminal while preserving the fact of sending
I need to send a letter from Linux terminal to the recipient's mailing address. I want the fact of sending the letter, its title and its text to be saved in the sent section of my mailbox (the mailbox ...
- 33
5
votes
2
answers
829
views
What does VAR=() mean in a script?
In the file /usr/bin/gcore (which is a bash script on my system), there are the following lines:
# When the -a option is present, this may hold additional commands
# to ensure gdb dumps all mappings (...
- 434
4
votes
0
answers
74
views
Recovering text of Unsaved document from process memory? (frozen Xed window - process still "running" but in Sleeping status)
The window of my text editor Xed froze with Unsaved documents just as I was doing 'File'->'Save as...' to save them... [How ironic.]
Since the process still exists, I am trying to recover the text ...
- 434