All Questions
107 questions
0
votes
2
answers
97
views
How to redirect output from a program that waits for input
Following this post I created my own version of the script, with the difference that user and password are forwarded from the environment variables:
#!/bin/zsh
pamtester login $user authenticate <&...
- 101
0
votes
2
answers
85
views
How to analyse a number of different datasets with a script and save the output for each dataset in a different new directory?
I am interested in analysing 50 different datasets with a script and saving the output of each of the 50 analyses in 50 different corresponding directories. To avoid doing this manually, how could ...
-1
votes
2
answers
90
views
In bash/zsh, how to compare the metadata in two directories including . and excluding .. and the contents inside subdirectories?
Let's say that in a script, you have a directory $1 and its copy $2 and you'd like to compare the metadata (names, permissions, sizes, full modification dates, …) of the files and directories inside ...
- 260
0
votes
1
answer
60
views
find with execdir, pipe redirection evaluated too early (quote issue?)
I use multiple GitHub accounts at work, so I need to modify the remote url to add my work account. I have figured out the recursive find -execdir, and how to get/sed/set the remote url, but I cannot ...
- 231
4
votes
2
answers
905
views
Combine two files as part of a command line parameter
I am trying to use csvgrep (part of csvkit) to extract rows matching one of two files. Unfortunately, there is no command line option that allows two matching files (like grep does). Only,
csvgrep -f ...
- 231
2
votes
3
answers
393
views
How to compare two directories recursively, and for each pair of files with the same name, location, and contents, say which file is older?
In a Linux shell, how to compare two directories recursively, and for each pair of files (including symlinks and directories) with the same location (including the name) in the two directories and the ...
- 260
1
vote
3
answers
525
views
Build find command from arguments
I often need to find a file, but I'm not sure what the name is, something like this:
$ find -iname '*foo*' -o -iname '*bar*' -o -iname '*blah*'
This is a little tedious. I'd like to create an alias ...
- 3,276
1
vote
2
answers
119
views
Start interactive function definition from shell-script
Using zsh or bash, I want to run a script that may prompt the user for multiple commands and store them as a function, however I'm finding that eval "function $FNCNAME() {" or echo "...
- 31
1
vote
2
answers
221
views
identify content inside base64 encoded content and replace the whole line
I have a script that outputs some information on my shell, like this:
field1: value1
field2: value2
...
fieldn: valuen
one such field/value can be:
CmdLine: C:\Windows\System32\WindowsPowershell\...
- 111
4
votes
2
answers
628
views
How to get both the number of bytes and the sha1sum with single pass?
I want to get both the number of bytes and the sha1sum of a command's output.
In principle, one can always do something like:
BYTES="$( somecommand | wc -c )"
DIGEST="$( somecommand | ...
- 16.2k
0
votes
0
answers
27
views
Bash equivalent of zsh alias at end of command (for pipes) [duplicate]
In zsh, I can set an alias at the end of a command, e.g. making G pipe through grep or L pipe through less.
Can I do something similar in bash? E.g. ls G key would expand to ls | grep key or ls L ...
- 133
4
votes
2
answers
220
views
How to make the (N) patterns of the zsh eatable by bash?
I am trying to develop a script which runs (and, ideally, does the same :-) ) in zsh and Bash. Problem is, that at a point, the zsh-specific part contains a pattern ending with (N). So: this_pattern*(...
- 10.3k
2
votes
1
answer
465
views
if var='value' then in Zsh: Is it really a valid syntax without semicolon?
The following code works on Zsh 5.8 that I tried, despite the missing semicolon. But is it really a valid Zsh syntax?
#!/bin/zsh
if var='value' then
echo 'then'
fi
Without an assignation that ...
- 147
-1
votes
1
answer
282
views
Can a bash script add to the context of zsh?
I have recently migrated from bash to zsh.
I used to use the following token_refresh.sh script to ssh-add my private key to the session:
#!/usr/bin/env bash
echo "configuring ssh access.."
...
- 183
0
votes
0
answers
49
views
Compress list of files as their shortest exclusive glob
How can I convert a list of files to the minimum-length glob that expands to those files and no others?
E.g. in a directory
root
├── one
└── two
Then the list root/one:root/two can be converted to ...
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